Bedrock Topography, 1982 (1:500,000) - Shows contours that define the elevation (feet above sea level) of the bedrock surface in Indiana. Contour interval is 50 feet. Digitized and modified from the following published paper map: Indiana Geological Survey Miscellaneous Map 36.

Regional Bedrock Geology (RGM, 1:250,000) - Shows the bedrock geology of the state of Indiana, produced from the Indiana Geological Survey Regional Geologic Map series, which was mapped at a scale of 1:250,000. The mapped stratigraphic units include selected systems, groups, and formations. Additional attributes were included from derivative products of the "Compendium of Paleozoic rock-unit stratigraphy in Indiana — a revision: Indiana Geological Survey Bulletin 59 (1986)." The names of some groups, formations, and members on some of the maps have been updated to reflect the most recent nomenclature.

Bedrock Geology, 1987 (1:500,000) - Shows systems and selected groups, formations, and other stratigraphic units. Generalized lithologic characterizations are also provided, as well as hyperlinks to the Compendium of Paleozoic Rock-Unit Stratigraphy in Indiana. Digitized from the following published paper map: Indiana Geological Survey Miscellaneous Map 48.

Geologic Structural Features, 2013 - Shows the locations of geologic structural features in Indiana. Source data scales range from 1:12,000 to 1:500,000 with the majority being taken from sources with a scale of 1:63,360 or larger. These data were subsequently updated on December 10, 2013, with additional structural features that have been recently mapped. Further, the attribute table was updated to include the name of the original paper source maps for each structural feature, and a directional indicator of fault movement was added to aid in cartographic display.

Coal Resource Data, 2010 - Shows the locations of 13,722 public coal-resource data points in Indiana, derived from the National Coal Resource Data System (NCRDS). Attributes include location and an ID number for each data point. Detailed location and stratigraphic information for each data point are stored in a separate Microsoft Access database named "NCRDS_Indiana2010.mdb" that is contained in the Indiana Geological Survey Report of Progress 39. The Indiana Geological Survey’s Coal Stratigraphic Database 2011 and an ESRI ArcReader interactive application can be purchased from IGS: http://igs.indiana.edu/bookstore/details.cfm?ItemID=2145&Pub_Num=RP39. This publication allows users to interactively search, explore, and compare coal stratigraphic data. These data are important for regional coal resource evaluation and can be used by the public, industry, and state and federal governments.

Depth to the Danville Coal, 2000 - Shows depth (in feet) to the top of the Danville Coal Member in Indiana. Data were extracted from the shapefile named COAL_AVAILABILITY_DANVILLE_IN.

Depth to the Springfield Coal, 1999 - Shows depth (in feet) to the top of the Springfield Coal Member in Indiana. Data were extracted from the shapefile named COAL_AVAILABILITY_SPRINGFIELD_IN.

Elevation of the Colchester Coal, 1994 (1:126,720) - Shows contours that define elevation ranges (feet above sea level) of the Colchester Coal Member. Contour interval is 20 feet. Digitized from unpublished work maps, some of which were the basis of the following published maps: (1) Indiana Geological Survey Special Report 34, fig. 23. (2) Indiana Geological Survey Special Report 43, fig. 24. (3) Indiana Geological Survey Open-File Study 94-20.

Elevation of the Danville Coal, 1994 (1:126,720) - Shows contours that define elevation ranges (feet above sea level) of the Danville Coal Member. Contour interval is 20 feet. Digitized from unpublished work maps that were the basis of the following published maps: (1) Indiana Geological Survey Special Report 34, fig. 25. (2) Indiana Geological Survey Special Report 43, fig. 28. (3) Indiana Geological Survey Special Report 50, fig. 21.

Elevation of the Houchin Creek Coal, 1988 (1:126,720) - Shows contours that define elevation ranges (feet above sea level) of the Houchin Creek Coal Member. Contour interval is 20 feet. Digitized from unpublished work maps, some of which were the basis of the following published maps: (1) Indiana Geological Survey Special Report 34, fig. 24. (2) Indiana Geological Survey Special Report 43, fig. 25.

Elevation of the Hymera Coal, 1994 (1:126,720) -Shows contours that define elevation ranges (feet above sea level) of the Hymera Coal Member. Contour interval is 20 feet. Digitized from unpublished work maps that were the basis of the following published maps: (1) Indiana Geological Survey Special Report 43, fig. 27. (2) Indiana Geological Survey Special Report 50, fig. 20.

Elevation of the Springfield Coal, 1995 (1:126,720) - Shows contours that define elevation ranges (feet above sea level) of the Springfield Coal Member. Contour interval is 20 feet. Digitized from unpublished paper maps that were the basis of the following published maps: (1) Indiana Geological Survey Special Report 34, fig. 13. (2) Indiana Geological Survey Special Report 43, fig. 26. (3) Indiana Geological Survey Special Report 50, fig. 19. (4) Indiana Geological Survey Special Report 54, fig. 11.

Entrances to Underground Coal Mines, 2008 (1:24,000) - Shows the locations of entrances to underground coal mines that have operated in the coal region of Indiana since the mid-1800s. Includes information on entrance type (hoist shaft, other shafts, slope, unknown), depth, mine number, and source information (map number). Derived from the Indiana Coal Mine Information System (CMIS).

Surface Coal Mines, 2010 (1:24,000) - Shows the locations and extents of surface coal mines for the period from the early 1900s through 2009. Mines can be differentiated based on mine type, mine number, source information, and dates of mining. Original source information includes company mine maps, field maps and notes of IGS geologists, IGS publications, Indiana State Mine Inspector Reports, several series of aerial photographs, and U.S. Geological Survey 7.5-minute quadrangle maps.

Underground Coal Mines, 2010 (1:24,000) - Shows the locations and extents of underground coal mines. Includes locations for all documented underground mines that operated in Indiana since the late 1800s. Mines can be differentiated based on mine type, mine number, source information, and dates of mining. Original source information includes company mine maps, field maps and notes of IGS geologists, IGS publications, and Indiana State Mine Inspector Reports.

Thickness of the Danville Coal, 1995 (1:126,720) - Shows contours that define ranges of thicknesses (in feet) of the Danville Coal Member. Retains different thickness ranges that were utilized in mapping various counties. Digitized from unpublished work maps that were the basis of the following published maps: (1) Indiana Geological Survey Special Report 34, fig. 40. (2) Indiana Geological Survey Special Report 43, fig. 14. (3) Indiana Geological Survey Special Report 50, fig. 17. (4) Indiana Geological Survey Special Report 54, fig. 10.

Thickness of the Danville Coal, 2000 (Source scale is unknown) - Shows thickness (in feet) of the Danville Coal Member in Indiana. Data were extracted from a previously published GIS layer of the Indiana Geological Survey named 'COAL_AVAILABILITY_DANVILLE_IN.SHP'

Thickness of the Hymera Coal, 1995 (1:126,720) - Shows contours that define ranges of thicknesses (in feet) of the Hymera Coal Member. Retains different thickness ranges that were utilized in mapping various counties. Digitized from unpublished work maps, including work maps that were the basis of the following published maps --(1) Indiana Geological Survey Special Report 43, fig. 13. (2) Indiana Geological Survey Special Report 50, fig. 16. (3) Indiana Geological Survey Special Report 54, fig.9.

Thickness of the Springfield Coal, 1995 (1:126,720) - Shows contours that define ranges of thicknesses (in feet) of the Springfield Coal Member. Retains different thickness ranges that were utilized in mapping various counties. Digitized from unpublished work maps that were the basis of the following published maps: (1) Indiana Geological Survey Special Report 34, fig. 37. (2) Indiana Geological Survey Special Report 43, fig. 11. (3) Indiana Geological Survey Special Report 50, fig. 7. (4) Indiana Geological Survey Special Report 54, fig.8.

Thickness of the Springfield Coal, 1999 (Source scale is unknown) - Shows thickness (in feet) of the Springfield Coal Member in Indiana. Data were extracted from a previously published GIS layer of the Indiana Geological Survey named 'COAL_AVAILABILITY_SPRINGFIELD_IN.SHP'

Pre-Wisconsin Glacial Limit (1:500,000) - Shows the southern-most extent of glaciation in Indiana as delineated by mapped glacial deposits of various types and ages. The mapped units include Pleistocene sediments of glacial origin that are interpreted to have been deposited during multiple episodes of continental glaciation by the North American Laurentide ice sheet. The term 'pre-Wisconsin' is meant to distinguish this glacial limit from that represented in the companion GIS data set of the IGS named 'WISCONSIN_GLACIAL_LIMIT_IN.SHP' which represents the (later or younger) limit of Wisconsin glaciation in Indiana. Digitized from the glacial limit line represented on Plate 1 (1988) of Gray, H. H., 1988, Map of southern Indiana showing geomorphic features relevant to ice marginal relict drainage in Gray, H. H., 1989, Relict drainageways associated with the glacial boundary in southern Indiana: Indiana Geological Survey Special Report 45, 9 p.

Quaternary Geology, 1989 (1:500,000) - Shows surficial geology of Indiana. The mapped units include textural assemblages of quaternary sediments and bedrock lithologies. Digitized from the following preexisting published paper map -- Indiana Geological Survey Miscellaneous Map 49.

Wisconsin Glacial Limit (1:500,000) - Shows the Wisconsin glacial limit in Indiana as delineated by mapped glacial deposits. The mapped units include glacial till that is interpreted to have been deposited during the Wisconsin Glaciation. The last major expansion of the North American Laurentide Ice Sheet occured in the Wisconsin glacial episode. Derived by extracting and interpreting elements of a preexisting published digital data source: Quaternary geologic map of Indiana, Indiana Geological Survey Miscellaneous Map 49.

Active Industrial Mineral Operations, 2010 - Shows the locations of industrial mineral operations that were active in 2010 in Indiana. These operations extracted and (or) produced the following commodities: cement, clay and shale, crushed stone, dimension limestone, dimension sandstone, gypsum, lime, peat, slag, and sand and gravel. Compiled by the Indiana Geological Survey as a publication named 'Directory of Industrial Mineral Producers in Indiana, 2010.' ( http://igs.indiana.edu/bookstore/details.cfm?ItemID=2117&Pub_Num=D11-2010 )

Industrial Minerals Data, 1989 - Shows the distribution of stratigraphic data for various industrial minerals in Indiana. Data were derived from cores, measured samples, mine samples, outcrops, quarries, and well logs.

Abandoned Quarries, 1998 - Shows abandoned quarry locations that have locational information that is adequate to determine coordinate alues. Derived from information in Indiana Geological Survey Computer Database 2.

Abandoned Sand and Gravel Pits, 1992 - Shows the locations of abandoned sand and gravel pits, including 2,275 of 2,515 sand and gravel pit locations from the 'Abandoned Sand and Gravel Pit Database' of the Indiana Geological urvey. Derived from the following unpublished report: Industrial Minerals Section Memorandum Report 98, Indiana Geological Survey.

Sand and Gravel Resource Potential, 1989 (1:500,000) - Identifies areas of the existence of sand and gravel resources and provides an approximate economic ranking of resource potential. This layer was derived by assigning qualitative assessments to each outcrop area in the following publication: Indiana Geological Survey Miscellaneous Map 49.

Active Industrial Mineral Operations, 2010 - Shows the locations of industrial mineral operations that were active in 2010 in Indiana. These operations extracted and (or) produced the following commodities: cement, clay and shale, crushed stone, dimension limestone, dimension sandstone, gypsum, lime, peat, slag, and sand and gravel. Compiled by the Indiana Geological Survey as a publication named 'Directory of Industrial Mineral Producers in Indiana, 2010.' ( http://igs.indiana.edu/bookstore/details.cfm?ItemID=2117&Pub_Num=D11-2010 )

Oil and Gas Fields, 20150108 (1:63,360) - Shows the locations and extents of oil and gas fields in Indiana, as of January 8, 2015. A field encloses wells classified in a single field and is not intended to indicate the extent of a producing reservoir. This layer is derived from the Petroleum Database Management System (PDMS) of the Indiana Geological Survey. This layer is updated daily on the PDMS, but was last updated on January 8, 2015 for IndianaMap. For more information about this layer, including metadata and download instructions, please access the PDMS ( http://igs.indiana.edu/PDMS/ ).

Petroleum Wells, 20150108 (1:24,000) - Shows locations of all known petroleum test wells, as contained in the Indiana Geological Survey Petroleum Database Management System (PDMS), as of January 8, 2015. Well symbols have been simplified into a five-class system (gas, gas storage, abandoned gas storage, oil, and all other petroleum test wells). Petroleum wells are updated daily on the PDMS, but were last updated on January 8, 2015 for IndianaMap. For more information about this layer, including metadata and download instructions, please access the PDMS ( http://igs.indiana.edu/PDMS/ ).

National Natural Landmarks, 2004 (1:24,000) - Shows all national natural landmarks in Indiana. Identifies and recognizes the best examples of biological and geological features in both public and private ownership. National Natural Landmarks are designated by the Secretary of the Interior, with the concurrence of the land owner. Attributes include landmark significance, ownership, management, area, location, and concerns. Obtained from the Midwest Regional Office of the National Park Service (NPS).

Natural Features, 2002 (1:24,000) - Shows the locations and attributes of natural features extracted from the Geographic Names Information System (GNIS) developed by the U.S. Geological Survey. Features include the following: prairie, basin, cliff, flat, bottom, gap, rock, hills, ridges, hollows. The dataset contains natural features that are mapped onto the 1:24,000 quadrangle maps of the U.S. Geological Survey and other source map data.

Natural Regions, 1984 (1:800,000) - Shows the natural regions and their subsections. Obtained from the Indiana Department of Natural Resources, Division of Nature Preserves, Indiana Natural Heritage Data Center.

Physiographic Regions, 1998 (1:500,000) - Shows physiographic regions of Indiana, derived from the following published map: Indiana Geological Survey Special Report 61.

Seismic Refraction Data, 1983 - Shows seismic shot information (13,888 points) collected by the Indiana Geological Survey across Indiana to determine the depth to bedrock at locations throughout the state and to infer the lithology of the bedrock.

Epicenters of Historical Earthquakes, 2014 - Shows the locations of all known historical earthquakes in Indiana with a moment magnitude (Mw) greater than or equal to 3.0. It includes earthquake locations derived from both instrumented recordings and estimations from historical accounts. The shapefile is an amalgam of points created from the CEUS SSC catalog maintained by the U.S. Nuclear Regulatory Commission (up to December 31, 2008) and the U.S. Geological Survey, National Earthquake Information Center (three events on December 30, 2010, January 26, 2012, and May 10, 2012). Values of Moment Magnitude (Mw) are used in this data. Mw refers to the energy released by the event, which is proportional to the slip on a fault multiplied by the area of the fault surface that slips. Events below Mw 3.0 have been omitted, as those events are below the energies felt by humans. Also, all pre-shock and aftershock, non-tectonic (e.g., mine blast), and duplicate event entries have been omitted. Data attributes include event date and time, x-y coordinate locations, and Moment Magnitude (Mw) values.

Earthquake Paleoliquefaction Sites, 1996 (1:24,000) - Shows paleoliquefaction features that were caused by strong-motion earthquakes having energies equivalent to Mb 5.0 or greater. This layer shows locations of sites where paleoliquefaction features have been identified by geologists. Ages of the features were determined by radiocarbon dating, dating of associated archaeological artifacts, and floodplain stratigraphy. Data were derived from a database that appears as an appendix in a project report for the National Earthquake Hazards Reduction Program (U.S. Geological Survey), Grant No. 14-08-0001-G2117.

Liquefaction Potential of Surficial Materials, 2011 - Shows generalized categories (low, moderate, high) of liquefaction potential based on NEHRP soil classes

Predicted Responses of Geologic Materials to Seismically Induced Ground Shaking in Indiana, 2011 - Shows distrib. and classification of NEHRP soil types

Silurian Reefs, 1992 - Shows Silurian reefs, which are significant for exploration and development of oil and gas fields and industrial minerals (IGS MM54)

Silurian Reefs, 1992 - Shows Silurian reefs, which are significant for exploration and development of oil and gas fields and industrial minerals (IGS MM54)

Total Clay Thickness (Grid), 2000- Shows total thickness of clay, as derived from logs of water wells (iLITH IGS)

Total Clay Thickness (Shapefile), 2000 - Shows total thickness of clay, as derived from logs of water wells (iLITH IGS)

Natural Gamma-ray Logs in Unconsolidated Sediments, 2012 - Shows an index to gamma-log records that were collected between 1978 and 2012

Natural Gamma-ray Logs in Unconsolidated Sediments, 2012 - Shows an index to gamma-log records that were collected between 1978 and 2012

Total Sand Thickness (Shapefile), 2000 - Shows total thickness of sand, as derived from logs of water wells (iLITH IGS)

Thickness of Unconsolidated Deposits, 1983 - Shows thickness ranges of unconsolidated deposits in Indiana (everything above bedrock) (IGS MM37)

Miscellaneous Government Boundaries, 20150622 - Shows miscellaneous government boundaries maintained by Indiana county agencies

Districts for the 114th Congress, 2015 - Shows congressional districts from which people are elected to the U.S. House of Representatives

Districts for the 113th Congress, 2013 - Shows congressional districts from which people are elected to the U.S. House of Representatives

Districts for the 112th Congress, 2011 - Shows congressional districts from which people are elected to the U.S. House of Representatives

Districts for the 111th Congress, 2009 - Shows congressional districts from which people are elected to the U.S. House of Representatives

House Districts for the 119th General Assembly, 2015 - Shows the boundaries of Indiana House Districts for the 119th General Assembly (created using the redistricted House boundaries established in 2011)

Senate Districts for the 119th General Assembly, 2015 - Shows the boundaries of Indiana Senate Districts for the 119th General Assembly (created using the redistricted Senate boundaries established in 2011)

House Districts for the 118th General Assembly, 2013 - Shows the boundaries of Indiana House Districts for the 118th General Assembly (created using the redistricted House boundaries established in 2011)

Senate Districts for the 118th General Assembly, 2013 - Shows the boundaries of Indiana Senate Districts for the 118th General Assembly (created using the redistricted Senate boundaries established in 2011)

House Districts for the 117th General Assembly, 2011 - Shows the boundaries of Indiana House Districts for the 117th General Assembly

Senate Districts for the 117th General Assembly, 2011 - Shows the boundaries of Indiana Senate Districts for the 117th General Assembly

House Districts for the 116th General Assembly, 2009 - Shows the boundaries of Indiana House Districts for the 116th General Assembly

Senate Districts for the 116th General Assembly, 2009 - Shows the boundaries of Indiana Senate Districts for the 116th General Assembly

Minor Civil Divisions (Civil Townships), 2000 - Legally defined county subdivisions, which, in Indiana, are representative of civil townships

Voting Districts, 2010 - Shows precincts, wards, and election districts, established for the purpose of conducting elections

Voting Districts, 2000 - Shows precincts, wards, and election districts, established for the purpose of conducting elections

Aquifer Recharge Rates (Near surface) - Shows estimated groundwater recharge rates to shallow aquifers in Indiana, with units of inches per year. This raster layer (100-m TIFF) was developed by applying a statistical model to a suite of natural-resource variables. The groundwater recharge data used in the multiple regression analysis were derived from calculations of groundwater baseflow and surface-water runoff for 279 streams in Indiana. Estimates of groundwater base flow were determined using hydrograph separation analysis (Institute of Hydrology, 1980) and were converted to recharge by using estimates of runoff following Wolock (2003). The average annual rate of groundwater recharge (in/year) was used as the dependent variable in a multiple regression analysis using ordinary least squares with several landscape and morphometric independent variables representing geologic, terrain, climate, and hydrogeologic characteristics. These data (along with the associated data layer named Aquifer_Sensitivity_Near_Surface_IN.TIF) were created to support decision making in Indiana where knowledge of groundwater recharge rates and sensitivity to aquifer contamination is desired.

Aquifer Sensitivity (Near surface) – Shows ranked categories of aquifer sensitivity in shallow aquifers in Indiana, and is based on estimates of diffuse groundwater recharge rates. The hypothesis is that near-surface contaminants are more likely to migrate downward in areas of increased groundwater recharge. To achieve the aquifer sensitivity ranking, the groundwater recharge rates (see Aquifer_Recharge_Near_Surface_IN.TIF) were classified by standard deviation, and the classifications were then compared to databases of contaminants in groundwater to validate the classification. These data (along with the associated data layer named Aquifer_Recharge_Near_Surface_IN.TIF) were created to support decision making in Indiana where knowledge of groundwater recharge rates and sensitivity to aquifer contamination is desired.

Bedrock Aquifer Systems in Indiana, 2011, (1:500,000) - Shows bedrock aquifer systems in Indiana, as provided by the Indiana Department of Natural Resources (IDNR), Division of Water on October 28, 2011. Attributes include information regarding aquifer system name, aquifer system type, potential yield in gallons per minute (gpm), total thickness (feet), and a web link to more detailed information. Also of possible interest is the related data layer named 'Aquifer_Systems_Unconsolidated_IDNR_IN,' showing unconsolidated aquifer systems in Indiana. NOTE: These data should not be used for specific local data analysis.

Unconsolidated Aquifer Systems in Indiana, 2011, (1:500,000) - Shows unconsolidated aquifer systems in Indiana, as provided by the Indiana Department of Natural Resources (IDNR), Division of Water, on October 28, 2011. Attributes include information regarding geologic materials, thickness of confining units, aquifer thickness, static water levels, well yield, typical well depths, and depth to the aquifer resource. Also of possible interest is the related data layer named 'Aquifer_Systems_Bedrock_IDNR_IN', showing bedrock aquifer systems in Indiana. NOTE: These data should not be used for specific local data analysis.

Bedrock Aquifer Systems in Indiana, 1994 (1:500,000) - Shows bedrock aquifer systems in Indiana. Attributes include information regarding aquifer type, local names, aquifer thickness, and potential aquifer yields. Derived from the printed publication titled 'Hydrogeologic Atlas of Aquifers in Indiana' of the U.S. Geological Survey. Also of possible interest is the related data layer named 'Aquifers_Unconsolidated_USGS_IN,' showing unconsolidated aquifer systems in Indiana. NOTE: These data should not be used for specific local data analysis.

Unconsolidated Aquifer Systems in Indiana , 1994 (1:500,000) - Shows unconsolidated aquifer systems in Indiana. Attributes include information regarding aquifer type, local names, aquifer thickness, and potential aquifer yields. Derived from the printed publication titled 'Hydrogeologic Atlas of Aquifers in Indiana' of the U.S. Geological Survey. Also of possible interest is the related data layer named 'Aquifers_Bedrock_USGS_IN', showing bedrock aquifer systems in Indiana. NOTE: These data should not be used for specific local data analysis.

Historic Canal Routes, 2000 - Shows the locations of three historic canals constructed and used between 1830 and 1870: the Wabash-Erie Canal, the White Water Canal, and the Central Canal.Obtained from Bernardin, Lochmueller, and Associates, Inc.

Historic Canal Structures, 2000 - Shows the locations of structures associated with three historic canals constructed and used between 1830 and 1870: the Wabash-Erie Canal, the White Water Canal, and the Central Canal. Obtained from Bernardin, Lochmueller, and Associates, Inc.

Floodplains - Flood Rate Insurance Maps (FIRM), 20150519 (1:12,000) - Shows floodplains and flood hazard areas, derived from FEMA Flood Rate Insurance Maps (FIRM). The FIRM are the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). The Digital Flood Insurance Rate Map (DFIRM) Database is derived from Flood Insurance Studies (FIS), previously published Flood Insurance Rate Maps (FIRM), flood hazard analyses performed in support of the FIS's and FIRM's, and new mapping data, where available. This database is an interim version of the DFIRM Database and does not fully meet all DFIRM specifications. Updated data were supplied by Indiana Department of Natural Resources (IDNR) personnel on May 19, 2015.

Hydrogeologic Terrains and Settings, 1995 (1:100,000) - Shows generalized interpretations of regional hydrostratigraphic and hydraulic relationships. The coverage was created by the Indiana Geological Survey as a product deliverable for an investigation funded by the Office of the Indiana State Chemist. The methodology of the investigation and definitions of terms are described in Indiana Geological Survey Open-File Report 95-7.

Sinkhole Density (2011), (30-meter TIFF Image) - Shows the density of sinkholes per square kilometer in southern Indiana and Kentucky. It was created by the Indiana Geological Survey to support a statistical regression analysis of potential sinkhole development areas in and around the Hoosier National Forest, United States Forest Service.This data layer is one of a suite of data layers: (1) sinkhole inventory point layer, (2) sinkhole density layer(s), and (3) sinkhole-development risk layer.

Sinkhole Inventory (2011) - Sinkhole inventory for southern Indiana and northern Kentucky. It was created by the Indiana Geological Survey to support a statistical regression analysis of potential sinkhole development areas in and around the Hoosier National Forest, United States Forest Service. This data layer was used as the basis for a related layer of sinkhole density, as well as a sinkhole-development risk layer.

Cave Entrances per Square Kilometer, 1997 - Shows the density (i.e., number of entrances per square kilometer) of mapped cave entrances in Silurian, Devonian, and Mississippian rocks in southern Indiana. Locations of individual cave entrances are not shown. The layer was compiled using unpublished data provided by personnel of the Indiana Geological Survey. This layer was used in the creation of the following published maps: Indiana Geological Survey Miscellaneous Maps 64 and 65.

Inferred Connections for Selected Subsurface Dye Traces, 1999 (1:24,000) - Shows inferred subsurface connections between input and detection points of various dye-trace investigations in southern Indiana. This shapefile should be used in conjunction with an associated shapefile named KARST_DYE_PTS_IN, which shows input, output, and intermediate dye-trace points. The layer was compiled from unpublished work maps of the Indiana Geological Survey. This layer was used in the creation of the following published map: Indiana Geological Survey Miscellaneous Map 66.

Input and Detection Points for Selected Subsurface Dye Traces, 1999 (1:24,000) - Shows the locations of input and detection points that were used for selected subsurface dye-trace investigations in southern Indiana. This shapefile should be used in conjunction with an associated shapefile named KARST_DYE_LINES_IN, which shows inferred connections between dye-trace points. The layer was compiled from unpublished work maps of the Indiana Geological Survey. This layer was used in the creation of the following published map: Indiana Geological Survey Miscellaneous Map 66.

Sinkhole Areas and Sinking-Stream Basins, 1997 (1:126,720) - Shows sinkhole areas (SHA) and sinking-stream basins (SSB) associated with rocks of Silurian, Devonian, and Mississippian age in southern Indiana. Shows sinkhole areas larger than 80 acres. Some sinkholes may exist outside the delineated areas, and some sinkholes may exist within the areas designated as sinking-stream basins, but such areas are not shown in this layer. The data should not be used for site-specific data analysis. The layer was compiled from unpublished work maps of Richard L. Powell and was used in the creation of the following published maps: Indiana Geological Survey Miscellaneous Maps 64 and 65.

Springs in South-Central Indiana, 1997 (1:126,720) - Shows the locations of springs in and around the karst region of south-central Indiana. The data should not be used for site-specific data analysis. The layer was compiled from unpublished work maps of Richard L. Powell and an unpublished spreadsheet provided by Samuel S. Frushour. This layer was used in the creation of the following published map: Indiana Geological Survey Miscellaneous Map 65.

Streamflow Gauging Stations in Indiana, 2008 - This layer shows locations of 179 streamflow gauges maintained by the United States Geological Survey (USGS) in Indiana. The gauges are part of a real-time national streamflow network. Attributes include station name, station reference number, and a URL link to real-time hydrologic data for each station.

Weather Stations in Indiana, 2008 (1:24,000) - This is a collection of active weather stations in Indiana that are part of the National Weather Services Cooperative Station Network. The data in this point layer came from the National Climatic Data Center (NCDC) inventories of cooperative weather stations and automated surface observation stations. Attributes include station names, types, and identification numbers, as well as the climate division of the station.

Streams, Rivers, Canals, Ditches, Artificial Paths, Coastlines, Connectors, and Pipelines, 20150921 (1:2,400) - Shows streams, rivers, canals, ditches, artificial paths, coastlines, connectors and pipelines in Indiana.This layer is derived from the local-resolution National Hydrography Dataset (NHD), and provides currently available data as of September 21, 2015. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. Also, high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD. The local resolution NHD is developed at 1:2,400 scale, and adds even more detail to the NHD. This dataset is currently incomplete but includes data for the following thirty-one HUC08 subbasins in Indiana: Auglaize (0410007), Blue-Sinking (05140104), Driftwood (05120204), Eel (05120104), Eel (05120203), Flatrock-Haw (05120205), Highland-Pigeon (05140202), Iroquois (07120002), Lower East Fork White (05120208), Lower Great Miami (05080002), Lower Ohio-Little Pigeon (05140201), Lower Wabash (05120113), Lower White (05120202), Middle Wabash-Busseron (05120111), Middle Wabash-Deer (05120105), Middle Ohio-Laughery (05090203), Mississinewa (05120103), Muscatatuck (05120207), Patoka (05120209), Salamonie (05120102), St. Joseph (04050001), St. Joseph-Maumee (04100003), St. Mary’s (04100004), Sugar (05120110), Upper East Fork White (05120206), Upper Great Miami (05080001), Upper Maumee (04100005), Upper White (05120201), Vermillion (05120109), Whitewater (05080003), Wildcat (05120107).
PLEASE NOTE, new Stream or River features added as part of this project (i.e. not in the high-resolution NHD) were not assigned an FCode of perennial, intermittent, or ephemeral. These features will have a generic FCode value (46000). Water may or may not be present outside of rain events and may or may not exhibit channelization typically associated with streams.

Lakes, Ponds, Reservoirs, Swamps, and Marshes, 20150921 (1:2,400) - Shows lakes, ponds, reservoirs, swamps and marshes in watersheds in Indiana. This layer is derived from the local-resolution National Hydrography Dataset (NHD), and provides currently available data as of September 21, 2015. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. Also, high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD. The local resolution NHD is developed at 1:2,400 scale, and adds even more detail to the NHD. This dataset is currently incomplete but includes data for the following thirty-one HUC08 subbasins in Indiana: Auglaize (0410007), Blue-Sinking (05140104), Driftwood (05120204), Eel (05120104), Eel (05120203), Flatrock-Haw (05120205), Highland-Pigeon (05140202), Iroquois (07120002), Lower East Fork White (05120208), Lower Great Miami (05080002), Lower Ohio-Little Pigeon (05140201), Lower Wabash (05120113), Lower White (05120202), Middle Wabash-Busseron (05120111), Middle Wabash-Deer (05120105), Middle Ohio-Laughery (05090203), Mississinewa (05120103), Muscatatuck (05120207), Patoka (05120209), Salamonie (05120102), St. Joseph (04050001), St. Joseph-Maumee (04100003), St. Mary’s (04100004), Sugar (05120110), Upper East Fork White (05120206), Upper Great Miami (05080001), Upper Maumee (04100005), Upper White (05120201), Vermillion (05120109), Whitewater (05080003), Wildcat (05120107).

Rivers, Inundation Areas, Canals, Submerged Streams, and Other Linear Waterbodies, 20150921 (1:2,400) - Shows rivers, inundation areas, canals, ditches, submerged streams and other linear waterbody areas in watersheds in Indiana. This layer is derived from the local-resolution National Hydrography Dataset (NHD), and provides currently available data as of September 21, 2015. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. Also, high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD. The local resolution NHD is developed at 1:2,400 scale, and adds even more detail to the NHD. This dataset is currently incomplete but includes data for the following thirty-one HUC08 subbasins in Indiana: Auglaize (0410007), Blue-Sinking (05140104), Driftwood (05120204), Eel (05120104), Eel (05120203), Flatrock-Haw (05120205), Highland-Pigeon (05140202), Iroquois (07120002), Lower East Fork White (05120208), Lower Great Miami (05080002), Lower Ohio-Little Pigeon (05140201), Lower Wabash (05120113), Lower White (05120202), Middle Wabash-Busseron (05120111), Middle Wabash-Deer (05120105), Middle Ohio-Laughery (05090203), Mississinewa (05120103), Muscatatuck (05120207), Patoka (05120209), Salamonie (05120102), St. Joseph (04050001), St. Joseph-Maumee (04100003), St. Mary’s (04100004), Sugar (05120110), Upper East Fork White (05120206), Upper Great Miami (05080001), Upper Maumee (04100005), Upper White (05120201), Vermillion (05120109), Whitewater (05080003), Wildcat (05120107).

Lake Bathymetry, 2012 (IDNR) - Shows bathymetric contours for 85 lakes in Indiana, depicting the depths of the water from the shoreline of each lake as elevation of zero. Contour intervals are 5 feet for most lakes, 2 feet for some. Lakes were surveyed using Biosonics DTX Echosounder surface unit and 200 kHz and 420 kHz transducers. The contour values for some lakes were adjusted to coincide with the legal gauge level of the lake. Bathymetric contours are available for the following 85 lakes in Indiana: Adams Lake, Appleman Lake, Atwood Lake, Banning Lake, Bass Lake, Bear Lake, Big Lake, Big Long Lake, Blackcat Lake, Bluegrass Lake, Brokesha Lake, Cass Lake, Cedar Lake, Clear Lake, Cree Lake, Crooked Lake, Dale Lake, Dewart Lake, Duck Lake, Emma Lake, Evertt Lake, Flint Lake, Gage Lake, Gilbert Lake, Graveyard Lake, Green Lake, Griffy Lake, Hackenberg Lake, Heaton Lake, Henry Lake, Hill Lake, Hindman Lake, Hudson Lake, Huntingburg Lake, Indian Lake, Jones Lake, Koontz Lake, Kuhn Lake, Lake of the Woods, Latta Lake, Lime Lake, Lindsey Lake, Little Barbee Lake, Little Otter Lake, Little Pike Lake, Little Turkey Lake, Loomis Lake, Loon Lake, McClures Lake, Meserve Lake, Messick Lake, Meteer Lake, Mud Lake, Nauvoo Lake, North Little Lake, Nyona Lake, Otter Lake, Pike Lake, Pleasant Lake, Pretty Lake, Riddles Lake, Rider Pond, Robinson Lake, Round Lake, Shipshewana Lake, Silver Lake, Simonton Lake, South Mud Lake, Starve Hollow Lake, Steinbarger Lake, Stone Lake, Tamarack Lake, Taylor Lake, Thomas Lake, Upper Long Lake, Waldron Lake, Wall Lake, Waubee Lake, Waveland Lake, West Boggs Lake, West Lake, West Otter Lake, Westler Lake, Witmer Lake, and Yellowwod Lake.

Streams, Rivers, Canals, Ditches, Artificial Paths, Coastlines, Connectors, and Pipelines, 2008 (1:24,000) - Shows streams, rivers, canals, ditches, artificial paths, coastlines, connectors and pipelines in Indiana. This layer is derived from the National Hydrography Dataset (NHD). NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD.

Lakes, Ponds, Reservoirs, Swamps, and Marshes, 2008 (1:24,000) - Shows lakes, ponds, reservoirs, swamps and marshes in watersheds in Indiana. This layer is derived from the National Hydrography Dataset (NHD). NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD.

Rivers, Inundation Areas, Canals, Submerged Streams, and Other Linear Waterbodies, 2008 (1:24,000) - Shows rivers, inundation areas, canals, ditches, submerged streams and other linear waterbody areas in watersheds in Indiana. This layer is derived from the National Hydrography Dataset (NHD). NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD.

Gaging Stations, Gates, Lock Chambers, Reservoirs, Springs, Seeps, Sinks, Rises,Waterfalls, and Wells, 2008 (1:24,000) - Shows gaging stations, gates, lock chambers, reservoirs, springs, seeps, sinks, rises, waterfalls, and wells in Indiana. This layer is derived from the National Hydrography Dataset (NHD). NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD.

Lake Shore Features, 2002 (1:24,000) - Shows the locations and attribute values of lake features extracted from the Geographic Names Information System (GNIS) developed by the U.S. Geological Survey. Features include the following: bay, bar, beach, cape, harbor, island. The dataset contains lake features named on 1:24,000 quadrangles of the U.S. Geological Survey and other source map data.

Stream Features, 2002 (1:24,000) - Shows the locations and attribute values of stream features extracted from the Geographic Names Information System (GNIS) developed by the U.S. Geological Survey. Features include the following: bend, channel, falls, levee, rapids. The dataset contains stream features named on 1:24,000 quadrangles of the USGS and other source map data.

National River Inventory, 2004 (1:100,000) - Shows all river reaches on the Nationwide Rivers Inventory (NRI) listed by the U.S. National Park Service (NPS). In order to be listed on the NRI, a river must be free-flowing and possess one or more Outstandingly Remarkable Values (ORVs). The eligibility analysis consists of an examination of the rivers hydrology, including any man-made alterations, and an inventory of its natural, cultural, and recreational resources.

Outstanding Rivers, 1997 (1:100,000) - Shows Outstanding Rivers in Indiana, as listed by the Natural Resource Commission (NRC). Identifies rivers and streams which have particular environmental or aesthetic interest. Except where incorporated into a statute or rule, the listing is intended to provide guidance rather than to have regulatory application. Provided by the Natural Resource Commission.

Impaired Lakes, 2006 - Shows waterbodies that do not meet water-quality standards under Section 303(d) of the Clean Water Act. Attributes include causes for listing under Section 303(d) (such as algae, taste and odor, E. coli, and sulfates), as well as fish consumption advisories for mercury and PCBs. Obtained from the Indiana Department of Environmental Management.

Impaired Streams, 2006 - Shows streams and rivers that do not meet water-quality standards under Section 303(d) of the Clean Water Act. Attributes include causes for listing under Section 303(d) (such as algae, metals, pesticides, E. coli, dioxins, et al.), as well as fish consumption advisories for mercury and PCBs. Obtained from the Indiana Department of Environmental Management.

Water Quality Observation Data, 1995 - Provides general information on water-quality observations at monitoring stations. Joinable tables must be utilized to access data at specific stations for specific parameters. Extracted by personnel of Bernardin, Lochmueller, and Associates, Inc., from the U.S. EPA Storage and Retrieval of U.S. Waters Parametric Data (STORET).

National Sediment Inventory, 1993 (EPA) - Provides general information on sediment contamination at monitoring stations, collected as part of a national investigation. Joinable tables must be utilized to access data at specific stations for specific parameters. Extracted by personnel of Bernardin, Lochmueller, and Associates, Inc., from the National Sediment Inventory of the USEPA BASINS (Better Assessment Science Integrating Point and Nonpoint Sources) 3.0 program.

Water Quality Monitoring, 1997 - Provides general information on water-quality statistics at monitoring stations. Joinable tables must be utilized to access data at specific stations for specific parameters. Extracted by personnel of Bernardin, Lochmueller, and Associates, Inc., from the U.S. EPA Storage and Retrieval of U.S. Waters Parametric Data (STORET).

Water-Well Locations in Indiana, 20130723 (variable source scale) - Shows ground-water-well locations in Indiana. Represents a subset of the Indiana Department of Natural Resources (IDNR), Division of Water water-well-log database. Only one third of the well locations have been determined by IDNR; the remainder have estimated locations based on the Indiana Public Land Survey System. Attributes include the location type (located or estimated), depth of the well, pump rate (gallons per minute), static water level (feet below land surface), and the use of the well. One field contains a link to the full detailed well record. Wells with estimated locations should not be used in hydrologic analyses in which location is a factor; wells with detailed locations represent site-specific characteristics, and those characteristics should not be extrapolated to areas beyond the individual well. Data are current as of July 23, 2013.

Water Wells and Boreholes - iLITH Database, 1998 - Shows data points that represent water wells and boreholes contained in the iLITH database, which is derived from the water-well database of the Indiana Department of Natural Resources (IDNR). The following description of the iLITH database is taken from Indiana Geological Survey Open-File Study 00-08: 'iLITH differs from the IDNR database in that lithologic descriptions and drilling contractor names have been standardized, locational information for ~104,000 water-well logs has been verified, and the spatial information in the database has been standardized for use with U.S. Geological Survey digital elevation data and U.S. Census Bureau Tiger data.'

Ground-water monitoring water-well locations in Indiana, 2008 (1:24,000) - Shows ground-water-monitoring-well locations in Indiana. Produced using data provided by the Indiana Department of Natural Resources, Division of Water and the United States Geological Survey (USGS) National Water Information System (NWIS). The data set includes records for wells that are currently active and inactive. Ground-water levels in aquifers throughout the state are used in conjunction with climate and soil-moisture data to monitor drought severity in Indiana. URL links to United States Geological Survey (USGS) Web pages for individual monitoring wells in Indiana are provided in the attribute table. The links provide additional station information and access to water-level measurements collected in the monitoring-well network.

Watershed Boundary Dataset (WBD) - 8-Digit Subbasin Watershed Boundaries for Indiana, 2009 (1:24,000) - Shows the most recent revision of watershed boundaries of 8-digit hydrologic accounting units. This data set, part of the Watershed Boundary Data set (WBD), is a complete digital hydrologic unit boundary layer to the Subbasin (8-digit) 4th level for the entire United States. Polygons are Attributed with hydrologic unit codes for 1st (Region), 2nd (Sub-Region), 3rd (Basin), and 4th (Sub-Basin) Hydrologic Unit Level codes, names, Sub-Basin acres and square miles. The Basin and Subbasin hydrologic unit boundaries provide a uniquely identified and uniform method of subdividing large drainage areas. The largest sized 4th level subbasins are useful for numerous application programs supported by a variety of local, State, and Federal Agencies. This data set is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. Funding and support for the Watershed Boundary data set (WBD) were provided by the Natural Resources Conservation Service, the Environmental Protection Agency, and the United States Geological Survey.

Watershed Boundary Dataset (WBD) - Ten-Digit Watershed Boundaries for Indiana, 2009 (1:24,000) - Shows the most recent revision of watershed boundaries of 10-digit hydrologic accounting units. This data set, part of the Watershed Boundary Data set (WBD), is a complete digital hydrologic unit boundary layer to the Watershed (10-digit) 5th level for the NRCS business areas in and around the state of Indiana. Polygons are attributed with hydrologic unit codes for 4th level sub-basins, 5th level watersheds, name, size, downstream hydrologic unit, type of watershed, noncontributing areas and flow modification. The Watershed and Subwatershed hydrologic unit boundaries provide a uniquely identified and uniform method of subdividing large drainage areas. The smaller sized 6th level sub-watersheds (up to 250,000 acres) are useful for numerous application programs supported by a variety of local, State, and Federal Agencies. This data set is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. Funding and support for the Watershed Boundary data set (WBD) were provided by the Natural Resources Conservation Service, the Environmental Protection Agency, and the United States Geological Survey.

Watershed Boundary Dataset (WBD) - Twelve-Digit Subwatershed Boundaries for Indiana, 2009 (1:24,000) - Shows the most recent revision of watershed boundaries of 12-digit hydrologic accounting units. This data set, part of the Watershed Boundary Data set (WBD), is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level in and around the state of Indiana. Polygons are attributed with hydrologic unit codes for 4th level subbasins, 5th level watersheds, 6th level subwatersheds, name, size, downstream hydrologic unit, type of watershed, noncontributing areas and flow modification. The Watershed and Subwatershed hydrologic unit boundaries provide a uniquely identified and uniform method of subdividing large drainage areas. The smaller sized 6th level sub-watersheds (up to 250,000 acres) are useful for numerous application programs supported by a variety of local, State, and Federal Agencies. This data set is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. Funding and support for the Watershed Boundary data set (WBD) were provided by the Natural Resources Conservation Service, the Environmental Protection Agency, and the United States Geological Survey.

Watersheds - 6-Digit Hydrologic Units, 1991 (1:24,000) - Shows the boundaries of 6-digit hydrologic accounting units. Actual hydrologic units often extend beyond state and county boundaries. Created by dissolving the Digital Dataset of 14-digit hydrologic units in Indiana created by the U.S. Geological Survey and Natural Resources Conservation Service.

Watersheds - 8-Digit Hydrologic Units, 1991 (1:24,000) - Shows the boundaries of 8-digit hydrologic accounting units. Actual hydrologic units often extend beyond the state and county boundaries. Created by dissolving the Digital Dataset of 14-digit hydrologic units in Indiana created by the U.S. Geological Survey and Natural Resources Conservation Service.

Watersheds - 11-Digit Hydrologic Units, 1991 (1:24,000) - Shows the boundaries of 11-digit hydrologic accounting units. Actual hydrologic units often extend beyond the state and county boundaries. Created by dissolving the Digital Dataset of 14-digit hydrologic units in Indiana created by the U.S. Geological Survey and Natural Resources Conservation Service.

Watersheds - 14-Digit Hydrologic Units, 1991 (1:24,000) - Shows the boundaries of 11-digit hydrologic accounting units. Actual hydrologic units often extend beyond the state and county boundaries. Product of the U.S. Geological Survey and Natural Resources Conservation Service.

Wetlands of Indiana from the National Wetland Inventory (NWI, 2014) - Shows the extent, approximate location, and type of wetlands and deepwater habitats in Indiana, as provided by the National Wetland Inventory (NWI) of the U.S. Fish and Wildlife Service (USFWS). These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. The download file and map service both include the Wetlands Project Metadata layer, which contains project-specific wetlands mapping procedures and information on dates, map scales, and emulsion of imagery used to map the wetlands within specific project boundaries. Digital wetlands data are intended for use with base maps and digital aerial photography at a scale of 1:12,000 or smaller. Due to the scale, the primary intended use is for regional and watershed data display and analysis, rather than specific project data analysis. The map products were neither designed nor intended to represent legal or regulatory products. Questions or comments regarding the interpretation or classification of wetlands or deepwater habitats can be addressed by visiting http://www.fws.gov/wetlands/FAQs.html.

Historic Wetlands of Indiana from the National Wetland Inventory (NWI, 2014) - Shows the extent, approximate location, and type of historic wetland habitats in Indiana. The U.S. Fish and Wildlife Service (Service) is the principal Federal agency that provides information to the public on the extent and status of the Nation's wetlands and provides stewardship for the wetlands data that comprise the Wetlands Layer of the National Spatial Data Infrastructure. In the formulation of this data layer, historic wetlands are defined as areas where there is evidence that a wetland once existed. This evidence can be from historical map information inventories of past wetland extent or other information collected that relate directly to data on wetland filling, drainage or other modifications. Historic wetlands have been identified using several different techniques depending on the availability and type of information used to locate these areas and user needs. For example, historical maps often provide information about past wetland extent or location and can be useful tools to identify historic wetlands. Historic wetlands have been identified as polygonal data. No linear features have been included. Historic wetland polygons are not classified as wetlands and have no wetland labels or attribution. Since these features no longer exist, boundary delineations are considered approximations based on topography, previously mapped information or indications of historic water levels.

National Wetland Inventory, as Lines, 1992 (1:3,000,000) - Shows features of wetlands, lakes, ponds, streams and other water resources, as defined by the U.S. Fish and Wildlife Service and compiled from the National Wetland Inventory (NWI). Aerial photo-interpretation techniques were used, with the objective of providing better geospatial information on wetlands than found on the U.S. Geological Survey topographic maps. Wetland boundaries are generalized and are not exact, nor are they comparable to boundaries derived from ground surveys. This layer is intended for use with its companion layers of wetland points and wetland polygons.

National Wetland Inventory, as Points, 1992 (1:3,000,000) - Shows features of wetlands, lakes, ponds, streams and other water resources, as defined by the U.S. Fish and Wildlife Service and compiled from the National Wetland Inventory (NWI). Point features are used to represent areas which may be too small to be represented by a polygon. Aerial photo-interpretation techniques were used, with the objective of providing better geospatial information on wetlands than found on the U.S. Geological Survey topographic maps. Wetland boundaries are generalized and are not exact, nor are they comparable to boundaries derived from ground surveys. This layer is intended for use with its companion layers of Wetland lines and Wetland polygons.

National Wetland Inventory, as Polygons, 1992 (1:3,000,000) - Shows features of wetlands, lakes, ponds, streams and other water resources, as defined by the U.S. Fish & Wildlife Service and compiled from the National Wetland Inventory (NWI). Aerial photo-interpretation techniques were used, with the objective of providing better geospatial information on wetlands than found on the U.S. Geological Survey topographic maps. Wetland boundaries are generalized and are not exact, nor are they comparable to boundaries derived from ground surveys. This layer is intended for use with its companion layers of Wetland lines and Wetland points.

Orthophotography of Indiana, (2013) - Shows orthophotography for 30 counties in western Indiana, collected during leaf-off conditions in 2013. The imagery is natural-color high-resolution (3-band) orthophotography, with an established standard resolution of 1-foot. Six counties chose to upgrade to imagery with 6-inch resolution (Dubois, Lake, LaPorte, Marion, Porter, and Spencer). Additionally, the cities of Bicknell and Vincennes purchased 6-inch imagery, and the city of Huntington and Purdue University obtained 3-inch imagery. From 2011 to 2013, the State of Indiana undertook a 3-year program to acquire orthophotography (RGBI) and LiDAR/elevation data for the entire state of Indiana. The program divided the state into three acquisition areas: center-portion - 28 counties (2011), eastern-portion - 34 counties (2012), and western-portion - 30 counties (2013). Please visit the following Web page of the Indiana Spatial Data Portal for more detailed information: ( http://gis.iu.edu/datasetInfo/statewide/in_2011.php ).

Orthophotography of Indiana, (2012) - Shows orthophotography for 34 counties in western Indiana, collected during leaf-off conditions in 2012. The imagery is natural-color high-resolution (3-band) orthophotography, with an established standard resolution of 1-foot. Ten counties chose to upgrade to imagery with 6-inch resolution (Allen, Dearborn, DeKalb, Floyd, Hamilton, Madison, Noble, Shelby, Steuben, and Whitley). From 2011 to 2013, the State of Indiana undertook a 3-year program to acquire orthophotography (RGBI) and LiDAR/elevation data for the entire state of Indiana. The program divided the state into three acquisition areas: center-portion - 28 counties (2011), eastern-portion - 34 counties (2012), and western-portion - 30 counties (2013). Please visit the following Web page of the Indiana Spatial Data Portal for more detailed information: ( http://gis.iu.edu/datasetInfo/statewide/in_2011.php ).

Orthophotography of Indiana, (2011) - Shows orthophotography for 28 counties in western Indiana, collected during leaf-off conditions in 2011. The imagery is natural-color high-resolution (3-band) orthophotography, with an established standard resolution of 1-foot. Six counties chose to upgrade to imagery with 6-inch resolution (Bartholomew, Elkhart, Harrison, Kosciusko, Marion, and St Joseph). From 2011 to 2013, the State of Indiana undertook a 3-year program to acquire orthophotography (RGBI) and LiDAR/elevation data for the entire state of Indiana. The program divided the state into three acquisition areas: center-portion - 28 counties (2011), eastern-portion - 34 counties (2012), and western-portion - 30 counties (2013). Please visit the following Web page of the Indiana Spatial Data Portal for more detailed information: ( http://gis.iu.edu/datasetInfo/statewide/in_2011.php ).

Best Available Imagery, (2005 - 2010) - Shows imagery that is considered the best available imagery for Indiana based on obtaining the most recent imagery that has a resolution of 1 foot (pixels are 1 ft x 1 ft) or better. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access the ISDP website for metadata and download information.

Best Available Imagery, (2005 - 2011) - Shows imagery that is considered the best available imagery for Indiana based on obtaining the most recent imagery that has a resolution of 1 foot (pixels are 1 ft x 1 ft) or better. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access the ISDP website for metadata and download information.

Orthophotography Basemap, (2005) - The orthophotography is natural color high-resolution (3-band) orthophotography for Indiana, collected during leaf-off conditions in March and April 2005. In 2005 the Indiana Geographic Information Council (IGIC) coordinated the 2005 IndianaMap Orthophotography Project, which facilitated the acquisition of statewide, high-resolution orthophotography and digital elevation data for Indiana. Standard resolution was established to be 1 foot pixels, while some particiating counties agreed to buy-ups with 6 inche pixels. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access ISDP website for metadata and download information.

NAIP Imagery, (2007) - Shows imagery acquired for the National Agriculture Imagery Program (NAIP) during the 2007 agricultural growing season (from June 2007 through August 2007). The purpose of the program is to provide current information regarding agricultural conditions in support of the United States Department of Agriculture (USDA) farm programs. This imagery has a cell size of 2 meters by 2 meters. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access ISDP website for metadata and download information. NOTE: The 2007 NAIP dataset is missing 14 'quarter-quads' of imagery. Small areas in Lake, Marion, Martin, Harrison, Switzerland, Wayne and Union Counties have no imagery.

NAIP Imagery, (2008) - Shows imagery acquired for the National Agriculture Imagery Program (NAIP) during the 2008 agricultural growing season (from June 2008 through August 2008). The purpose of the program is to provide current information regarding agricultural conditions in support of the United States Department of Agriculture (USDA) farm programs. This imagery has a cell size of 1.1 meters by 1.1 meters. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access ISDP website for metadata and download information.

NAIP Imagery, (2010) - Shows imagery acquired for the National Agriculture Imagery Program (NAIP) during the 2010 agricultural growing season (from June 2010 through August 2010). The purpose of the program is to provide current information regarding agricultural conditions in support of the United States Department of Agriculture (USDA) farm programs. This imagery has a cell size of 1.1 meters by 1.1 meters. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access ISDP website for metadata and download information.

1998-99 Aerial Photos (USGS DOQQs), (1:12,000) - Shows the 1998-1999 Digital Orthophoto Quarter Quadrangle (DOQQ) imagery of Indiana, produced by the United States Geological Survey (USGS). These data are grayscale, with a 1-meter ground resolution. A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines the image characteristics of the original photograph with the georeferenced qualities of a map. Each DOQQ covers an area measuring 3.75-minutes longitude by 3.75-minutes latitude, approximately 5 miles on each side, or a quarter of the standard size of a USGS 7.5-minute quadrangle map. Data were provided to IndianaMap from the U.S. Department of Agriculture, Natural Resources Conservation Service. Please visit the following Web page of the Indiana Spatial Data Portal for more detailed information ( http://gis.iu.edu/datasetInfo/statewide/98doqq.php ).

USGS Topographic Maps, 1996 (1:24,000) - Shows the digital color imagery (Digital Raster Graphics, referred to as DRGs) of topographic quadrangle maps of the U.S. Geological Survey. These data are hosted and maintained by our data partners at the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Use the links below to access ISDP website for metadata and download information.

Airport Boundaries and Runways, 2006 (1:100,000) - Shows boundaries and runways for 143 airports in Indiana (provided by ESRI). All airports have a boundary and most have at least one runway. Provides names and feature classification codes, as well as information regarding use, elevation, congestion level, service level, hub size, and tower type.

Public-use Airports, 2005 - Shows locations of 109 public-use airports in Indiana, derived from data provided by personnel of the Indiana Department of Transportation (INDOT), Aeronautics Section. Personnel of INDOT obtained the data from the airport application/ FAA Master Record on file at the Indiana Department of Transportation, Aeronautics Section. The data is collected as part of the application for an airport site.

Public-Use Airports, 1998 - Shows 642 aircraft landing facilities in Indiana, obtained from National Transportation Atlas Database (NTAD), Bureau of Transportation Statistics (BTS). Attributes include the physical and operational characteristics of the landing facility, current usage ncluding enplanements and aircraft operations, congestion levels and usage categories.

County and City Bridges - Indiana Department of Transportation, 2012 (1:2,000,000) - Shows bridges located on city and county roads in Indiana. Data have been aligned to Digital Orthoquarterquads (DOQQs) of the U.S. Geological Survey. Obtained from Indiana Department of Transportation (INDOT), Business Information and Technology Systems. Data are current as of June 26, 2012.

System 1 Bridges - Indiana Department of Transportation, 2012 (1:2,000,000) - Shows bridges found on System 1 roads that include interstate highways, U.S. highways, state routes, ramps, institutional roads (roads in state university properties, state hospitals, Indiana National Guard properties), and roads in properties owned by the Indiana Department of Natural Resources and maintained by INDOT. Data have been aligned to Digital Orthoquarterquads (DOQQs) of the U.S. Geological Survey. Obtained from Indiana Department of Transportation (INDOT), Business Information and Technology Systems, GIS Mapping. Data are current as of June 26, 2012.

Historic Bridges (IDNR), 20150921 - Shows locations of historic bridges in Indiana, provided by the Indiana Department of Natural Resources (IDNR), Division of Historic Preservation and Archaeology on September 21, 2015. It includes bridge structures and objects that are were at least 40 years old at the time of survey. It is not complete, may be inaccurate, and may be modified as new information is prepared. The absence of information in a particular location does not necessarily indicate that no such resources exist in said location. Absence of information in a particular location may be due simply to a lack of survey investigations of said location.

Broadband - Wireline and Wireless Coverage, 2013 (Indiana Utility Regulatory Commission and Service Providers, Polygon Feature class, 1:500,000) - Shows broadband wireline and wireless coverage in Indiana, provided by personnel of Indiana Office of Technology (IOT). Data current as of October 22, 2013. The term "wireline" includes the following techologies: AxDSL, DSL, Cable, and Fiber. The term 'wireless' includes the following techologies: Terrestrial Fixed Wireless - Unlicensed, Terrestrial Fixed Wireless - Licensed, and Terrestrial Mobile Wireless.

This data represents work in progress and will be continually improved over time. Long-term plans include adding information about service provider name, type of technology used to provide service, and data transmission speed.

How can you help? If you would like to assist in verifying and updating this beta product, please visit the following Web URL: http://www.in.gov/iot/BroadbandQuestionnaire.htm

Cellular Towers, 2006 - Shows licensed cellular towers. The ground condition of this data changes frequently. New towers that mayhave been in the application process are not included. The dataset does not represent all antennae structures. Obtained from an on-line Federal Communication Commission database on November 9, 2006.

Fire Station Facilities in Indiana (MHMP), 2011 - Shows locations of fire station facilities in Indiana, derived by The Polis Center as part of several 'DMA2000 Multi-Hazard Mitigation Planning' (MHMP) projects, from data of the 'Hazards U.S. Multi-Hazards' (Hazus-MH MR1, v 1.1) program (data from 2003) developed by the Federal Emergency Management Agency (FEMA). This data set is more complete in many counties in Indiana than the data set for essential facilities provided by FEMA with the Hazus-MH software. Attributes include the name, address, and contact information for each facility. The Federal Emergency Management Agency awarded Multi-Hazard Mitigation Planning (MHMP) Grants in 2003, 2005, and 2007 to the Indiana Department of Homeland Security. A total of 67 counties participated in the MHMP process. The Disaster Mitigation Act of 2000 (DMA 2000) requires every jurisdiction in the United States to perform a natural hazard risk analysis and identify mitigation strategies to reduce the losses from future disasters. By completing a plan, the jurisdictions are eligible for funding to help implement mitigation projects.

Medical Care Facilities in Indiana (MHMP), 2011 - Shows locations of medical care facilities in Indiana, derived by The Polis Center as part of several 'DMA2000 Multi-Hazard Mitigation Planning' (MHMP) projects, from data of the 'Hazards U.S. Multi-Hazards' (Hazus-MH MR1, v 1.1) program (data from 2003) developed by the Federal Emergency Management Agency (FEMA). This data set is more complete in many counties in Indiana than the data set for essential facilities provided by FEMA with the Hazus-MH software. Attributes include the name, address, and contact information for each facility. The Federal Emergency Management Agency awarded Multi-Hazard Mitigation Planning (MHMP) Grants in 2003, 2005, and 2007 to the Indiana Department of Homeland Security. A total of 67 counties participated in the MHMP process. The Disaster Mitigation Act of 2000 (DMA 2000) requires every jurisdiction in the United States to perform a natural hazard risk analysis and identify mitigation strategies to reduce the losses from future disasters. By completing a plan, the jurisdictions are eligible for funding to help implement mitigation projects.

Police Station Facilities in Indiana (MHMP), 2011 - Shows locations of police station facilities in Indiana, derived by The Polis Center as part of several 'DMA2000 Multi-Hazard Mitigation Planning' (MHMP) projects, from data of the 'Hazards U.S. Multi-Hazards' (Hazus-MH MR1, v 1.1) program (data from 2003) developed by the Federal Emergency Management Agency (FEMA). This data set is more complete in many counties in Indiana than the data set for essential facilities provided by FEMA with the Hazus-MH software. Attributes include the name, address, and contact information for each facility. The Federal Emergency Management Agency awarded Multi-Hazard Mitigation Planning (MHMP) Grants in 2003, 2005, and 2007 to the Indiana Department of Homeland Security. A total of 67 counties participated in the MHMP process. The Disaster Mitigation Act of 2000 (DMA 2000) requires every jurisdiction in the United States to perform a natural hazard risk analysis and identify mitigation strategies to reduce the losses from future disasters. By completing a plan, the jurisdictions are eligible for funding to help implement mitigation projects.

School Facilities in Indiana (MHMP), 2011 - Shows locations of school facilities in Indiana, with the exception of some universities. Derived by The Polis Center as part of several 'DMA2000 Multi-Hazard Mitigation Planning' (MHMP) projects, from data of the 'Hazards U.S. Multi-Hazards' (Hazus-MH MR1, v 1.1) program (data from 2003) developed by the Federal Emergency Management Agency (FEMA). This data set is more complete in many counties in Indiana than the data set for essential facilities provided by FEMA with the Hazus-MH software. Attributes include the name, address, and contact information for each facility. The Federal Emergency Management Agency awarded Multi-Hazard Mitigation Planning (MHMP) Grants in 2003, 2005, and 2007 to the Indiana Department of Homeland Security. A total of 67 counties participated in the MHMP process. The Disaster Mitigation Act of 2000 (DMA 2000) requires every jurisdiction in the United States to perform a natural hazard risk analysis and identify mitigation strategies to reduce the losses from future disasters. By completing a plan, the jurisdictions are eligible for funding to help implement mitigation projects.

EMS Stations (IDHS), 2009 - Shows any location where emergency medical services (EMS) personnel are stationed or based out of, or where equipment that such personnel use in carrying out their jobs is stored for ready use. Ambulance services are included even if they only provide transportation services, but not if they are located at, and operated by, a hospital. If an independent ambulance service or EMS provider happens to be collocated with a hospital, it will be included in this dataset. The dataset includes both private and governmental entities. These data were developed for the Homeland Security Infrastructure Program (HSIP). The data were provided by personnel of Indiana Department of Homeland Security (IDHS) on June 29, 2009.

Fire Stations (IDHS), 2009 - Shows any location where fire fighters are stationed or based, or where equipment that such personnel use in carrying out their jobs is stored for ready use. Fire Departments not having a permanent location are included, in which case their location has been depicted at the city/town hall or at the center of their service area if a city/town hall does not exist. Data also includes those locations primarily engaged in forest or grasslands fire fighting, including fire lookout towers if the towers are in current use for fire protection purposes. Data includes both private and governmental entities. Fire fighting training academies are also included. Data were developed for the Homeland Security Infrastructure Program (HSIP). The data were provided by personnel of Indiana Department of Homeland Security(IDHS) on June 29, 2009.

Hospitals (IDHS), 2009 - Shows all general medical or surgical hospitals in Indiana. Other types of hospitals are included if they were represented in datasets provided by IDHS. Therefore, not all of the specialty hospitals in Indiana are represented. Developed for the Homeland Security Infrastructure Program (HSIP). The data were provided by personnel of Indiana Department of Homeland Security (IDHS) on June 29, 2009.

Hospitals and Rural Health Clinics, 2009 - Shows the locations of 160 hospitals and 55 rural health clinics. Attributes include street addresses, telephone numbers, and type of facility (private hospital, state hospital, church hospital, etc.). Locations were plotted by personnel of the Indiana Geological Survey using the Geocoding Tool in ESRI ArcMap 9.2 and street information licensed from Tele Atlas, Dynamap 2000 v. 17.0. On May 11, 2009, at the request of a user, the location of St Margaret Mercy Healthcare Center South, Dyer, Indiana, was more accurately located. Street addresses were obtained from the Web site of the Indiana State Department of Health (ISDH).

Residential Care Facilities, Nursing Homes, and Hospices, 2007 - Shows the locations of 86 residential care facilities, 525 long-term care facilities (nursing homes), and 81 hospices included in various directories that appear on Web pages of the Indiana State Department of Health (ISDH). Locations were 'geocoded' by personnel of the Indiana Geological Survey using the in ESRI ArcMap 9.2, using street information licensed from Tele Atlas, Dynamap 2000 (v. 17.0). Addresses were obtained from the following Web pages of the ISDH:
Hospices - http://www.in.gov/isdh/regsvcs/acc/hspcdir/wdirhspc.htmLong-Term Care Facilities
Long-Term Care Facilities/Nursing Homes - http://www.in.gov/isdh/regsvcs/ltc/directory/wdirltc.htm
Residential Care Facilities - http://www.in.gov/isdh/regsvcs/ltc/resdir/wdirres.htm

Emergency Facilities (HAZUS), 1992 - Shows locations of emergency facilities in Indiana, including police departments (EFPS), fire departments (EFFS), and civil defense facilities (EFEO). Modified from data provided by the Federal Emergency Management Agency and the National Institute of Building Sciences, as part of a program referred to as 'HAZUS.'

Hospitals and Clinics (HAZUS), 1992 - Shows locations of hospitals in Indiana. Attributes include name, address, and number of beds. Modified from data provided by the Federal Emergency Management Agency and the National Institute of Building Sciences, as part of a program referred to as 'HAZUS.'

Dams, 1996 - Shows locations of dams in Indiana, and provides the ages of dams and descriptions of their sizes, reservoir capacities, owners, and regulatory oversight agencies. The National Inventory of Dams, originally created by the U.S. Army Corps of Engineers and the Federal Emergency Management Agency, was developed to track dam-related problem areas. Derived from BASINS 3.0 Program, Region 5, of the U.S. Environmental Protection Agency (EPA).

Dams (IDNR), 2010 - Shows dams in Indiana that are under Indiana Department of Natural Resources (IDNR) jurisdiction. Provides names and identification numbers of dams, and information regarding heights, drainage areas, reservoir capacities, relative hazard potentials, and status of structures. Data are current as of April 21, 2010.

Alternative Fuel Retail Sites, 2006 (1:850) - Shows retail fueling sites for ethanol (E85) and biodiesel (B2, B5, B10, and B20). Retail fueling sites listed on the National Ethanol Vehicle Coalition (NEVC) and National Biodiesel Board (NBB) Web sites (as of August 16, 2006) were located by address information and adjusted using orthophotography. Provided by personnel of the Indiana Geological Survey.

Electric Service Territories, 20150414 - Shows the electric service territories served by regulated electric service providers in Indiana. Data was provided by the Indiana Utility Regulatory Commission (IURC) on April 14, 2015. This layer is strictly a visual aide and a best interpretation of the legally approved Electric Service Territories, as ruled by the Indiana Utility Regulatory Commission (IURC). These data are not legally binding or necessarily fully representative of legal rulings.

Ethanol Production Facilities in Indiana, 2011 - Shows the locations of ethanol production facilities in Indiana. Attributes include the name and address of the facility, and information regarding ethanol production capacity. IGS Personnel used mailing addresses and MapQuest to obtain the spatial locations of all facilities contained in this data set. Information regarding ethanol production facilities was obtained from the following sources:
(1) Fact Sheet - Biofuel Plants in Indiana -- http://www.in.gov/isda/biofuels/factsheet.pdf
(2) Indiana Ethanol Plants -- Purdue University -- http://cobweb.ecn.purdue.edu/~lorre/16/Biofuel%20Factsheets/pdms

Electric Power Facilities, 1992 - Shows locations of electric power facilities in Indiana. Modified from data provided by the Federal Emergency Management Agency and the National Institute of Building Sciences, as part of a program referred to as 'HAZUS.'

Natural Gas, Crude Oil, and Refined Oil Pipelines, 1988 (1:63,360) - Shows the locations and extents of known natural gas, crude oil, and refined products pipelines. Digitized from data compiled for the creation of the following published map: Indiana Geological Survey Miscellaneous Map 53.

Indiana BMV License Branch Locations, 2007 - Shows the locations of 142 branch offices of the Indiana Bureau of Motor Vehicles (BMV). Attributes include street addresses and Web-site URLs. Locations were plotted by personnel of the Indiana Geological Survey using the 'Geocoding' tool in ESRI ArcMap 9.2 and street information licensed from Tele Atlas, Dynamap 2000 v. 17.0. Addresses were obtained on March 22, 2007, from the Web site of the BMV.

Cemetery Areas (IDNR), 20150921 (1:24,000) - Shows polygon locations of cemetery sites in Indiana, provided by the Indiana Department of Natural Resources (IDNR), Division of Historic Preservation and Archaeology (DHPA), on September 21, 2015. Cemetery areas are included in these data regardless of the age, number of graves, or size of the cemetery. Data are not complete, may be inaccurate, and may be modified as new information is prepared. The absence of information in a particular location does not necessarily indicate that no graves or cemetery exists in said location. Absence of information in a particular location may be due simply to a lack of survey investigations of said locations. Also, a polygon does not indicate the exact size or shape of the cemetery.

Cemetery Site Locations (IDNR), 20150921 - Shows point locations of cemetery sites in Indiana, provided by the Indiana Department of Natural Resources (IDNR), Division of Historic Preservation and Archaeology (DHPA), on September 21, 2015. Cemetery locations are included in these data regardless of the age, number of graves, or size of the cemetery. Data are not complete, may be inaccurate, and may be modified as new information is prepared. The absence of information in a particular location does not necessarily indicate that no graves or cemetery exists in said location. Absence of information in a particular location may be due simply to a lack of survey investigations of said locations.

Cemeteries, 2002 (1:24,000) - Shows the locations of cemeteries in Indiana. Extracted from the Geographic Names Information System (GNIS) of the U.S. Geological Survey. The dataset contains cemeteries named on 1:24,000 quadrangles. Unnamed cemeteries in some southwestern counties were added from 1:24,000 quadrangles by Bernardin, Lochmueller and Associates, Inc.

Historic Places (National Register, IDNR), 20150921 - Shows sites in Indiana that have been included in the National Register of Historic Places. These data were provided by the Indiana Department of Natural Resources, Division of Historic Preservation and Archaeology on September 21, 2015. It includes buildings, districts, sites, cemeteries, bridges, structures and objects. It is not complete, may be inaccurate, and may be modified as new information is prepared. The absence of information in a particular location does not necessarily indicate that no such resources exist in said location.

Historic Sites and Structures in Indiana (IDNR), 20150921 - Shows site locations that have been included in the Indiana Historic Sites and Structures Survey. These data were provided by the Indiana Department of Natural Resources, Division of Historic Preservation and Archaeology on September 21, 2015. It includes buildings, districts, sites, structures and objects that are were at least 40 years old at the time of survey. It is not complete, may be inaccurate, and may be modified as new information is prepared. The absence of information in a particular location does not necessarily indicate that no such resources exist in said location. Absence of information in a particular location may be due simply to a lack of survey investigations of said location.

Industrial Parks, 2006 - Shows locations of industrial parks in Indiana. Attributes include name, address, zoning designation, and total acreage. Provided by the Indiana Department of Transportation. Personnel of INDOT obtained this data from various sources. Some of the data were provided to INDOT personnel from Cinergy, Inc. Also, data were downloaded from the Indiana Economic Development Council Web page. Locations were also culled from a paper publication titled 'Indiana Industrial Parks Database,' Indiana Chamber of Commerce, Business Research Center, 2003.

Intermodal Terminal Facilities, 1997 (1:100,000) - Shows facilities for transfer of cargo between highway, rail, pipeline, and water transport. Attributes include information on rail carriers, types of cargo, and directions of transfer. Obtained from the National Transportation Atlas Database (NTAD), Bureau of Transportation Statistics. Because of the frequent turnover of this type of facility, some of the terminals included may be dormant or closed.

Libraries, 2007 - Shows the locations of 528 academic, public, and public branch libraries in Indiana. Attributes include street addresses and type of facility. Locations were plotted by personnel of the Indiana Geological Survey using the 'Geocoding' tool in ESRI ArcMap 9.2 and street information licensed from Tele Atlas, Dynamap 2000 v. 17.0. Addresses were obtained from the Web site of the Indiana State Library.

Museums, 2007 - Shows the locations of 118 museums in Indiana. Attributes include web addresses, street addresses and type of facility (i.e., Art, Children, General, Historical Society, History, House Museum, Military, Music, Science, Sport, and Transportation). Locations were plotted by personnel of the Indiana Geological Survey using the 'Geocoding' tool in ESRI ArcMap 9.2 and street information licensed from Tele Atlas, Dynamap 2000 v. 17.0. Addresses were obtained from various directories retrieved through Google searches.

Ports, 2004 (1:100,000) - Shows U.S. Army Corps of Engineers ports. Obtained from the National Waterway Network database, Bureau of Transportation Statistics.

Religious Facilities, 2007 (1:24,000) - Shows the locations of religious centers and places of worship in Indiana. Extracted from the Geographic Names Information System (GNIS) of the U.S. Geological Survey. The dataset contains religious facilities named on 1:24,000 quadrangles. Additional facilities were added by Bernardin, Lochmueller and Associates, Inc.

Highways (INDOT), 2004 (1:24,000) - Shows Interstate, U.S., and State Highways. Attributes include route numbers and the number of lanes. Obtained from the Indiana Department of Transportation. The highways that are shown are a subset of the Indiana Statewide Travel Demand Model (version 4) and duplicate general traffic patterns, so that detailed networks at interchanges and ramps are not represented.

Interstate 69 Extension (INDOT), 2012 - Shows the route of the Interstate 69 extension, and associated ramps, in southern Indiana. The first three sections (from Evansville to Crane) opened for travel on November 19, 2012. The fourth section, from the US 231 interchange to Bloomington) is also scheduled to be completed by the end of 2014. Data were provided by INDOT personnel on November 8, 2012.

Interstate Highways (TIGER), 2000 (1:100,000) - Shows only interstate highways in Indiana. Derived from information from the U.S. Department of Commerce, U.S. Census Bureau, Census 2000 Tiger Line Files. Extracted from the field named 'CFCC' (from IGS shapefile named 'ROADS_TIGER00_IN') using values that designate sections of interstate highways. Additionally, some gaps were filled by manual digitization by IGS personnel.

Mile Markers - System 1 Roads (INDOT), 2012 - Shows mile markers for System 1 roads that include Interstates, U.S. Highways, State Routes, Ramps, Institutional Roads (roads in state university properties, state hospitals, Indiana National Guard properties), and roads in properties owned by the Indiana Department of Natural Resources and maintained by INDOT. Data were created by using the INDOT Linear Referencing System and the current version of the Planning and Production Inventory Database. Attributes include mile-marker post numbers. Obtained from INDOT, Business Information and Technology Systems, GIS Mapping. Data are current as of November 8, 2012.

Ramps (INDOT), 2006 - Shows ramp systems, including all segments of cloverleaf and other ramp systems. Attributes include identification numbers from INDOT Locational Reference System (LRS). Obtained from Indiana Department of Transportation (INDOT), Business Information and Technology Systems, GIS Mapping.

Roadways (INDOT), 2012 (1:24,000) - Shows the Federal Highway Administration functional classification of roadways in the Indiana Statewide Travel Demand Model (ISTDM). Functional classification generally is the process by which streets and highways are grouped into classes, or systems, according to the character of the service they are intended to provide year to year. Attributes include route numbers, number of lanes, and functional classification (i.e., character of service). Data are current as of June 26, 2012.

Traffic Counts, 2004 (1:24,000) - Shows traffic counts (average annual daily traffic, factored to year 2000) for roadways in Indiana. Other attributes include route numbers and number of lanes. Obtained from the Indiana Department of Transportation. The roadways that are shown are a subset of the Indiana Statewide Travel Demand Model (version 4).

Traffic Analysis Zones, 2000 (1:100,000) - Shows traffic analysis zones identified by the U.S. Census Bureau. Vigo, Madison, and Monroe counties were not available at time of creation. Data is from U.S. Department of Commerce, U.S. Census Bureau, Census 2000 Tiger Line Files.

Rail System Active (INDOT), 2006 (1:1,200) - Shows the active railroad system of Indiana. Recent 2006 edits include removal of abandoned rail lines and inclusion of ownership changes. Attributes include contact names, phone numbers, mailing addresses, and freight classifications. The data were derived from pre-existing INDOT basemap, the State of Indiana 2005 Rail System Map, and an old Indiana Rail System Map (showing abandoned rail lines). Provided to personnel of the Indiana Geological Survey (IGS) by Freight Rail Planner, Office of Railroads, Multi-Modal Transportation Division, Indiana Department of Transportation.

Rail System - Active and Abandoned (INDOT), 2005 (1:1,200) - Shows all active and abandoned rail lines in Indiana. The attribute titled''Status' indicates whether the rail line is abandoned ( 'A') or traffic is present ('T'). The data were derived from preexisting INDOT basemap, the State of Indiana 2005 Rail System Map, and a old Indiana Rail System Map (showing abandoned rail lines). Data acquired between 1998 and 2003. Data are aligned to digital orthoquarterquads (DOQQs) of the U.S. Geological Survey. Provided by personnel of INDOT, Business Information and Technology Systems, GIS Mapping.

Railroad Crossings (INDOT), 2006 (1:1,200) - Shows locations of rail crossings in Indiana. Attributes include the identification number ('XING_ID') for the Federal Railroad Administration (USDOT) National Highway-Rail Crossing Inventory Program. For more information, see the following URL: [ http://www.fra.dot.gov/us/content/801 ]. Data were derived from a pre-existing INDOT Road basemap, the 2003 imagery of the National Agricultural Imagery Program (NAIP), and Railroad Database and Programatic Selection Processes. Provided by the Indiana Department of Transportation (INDOT), Business Information and Technology Systems, GIS Mapping. Data are current as of September 13, 2006.

Railroad Network, 2003 (1:100,000) - Shows the railway system at a scale of 1:100,000. Data includes old railways that have been abandoned. Data are from the National Transportation Atlas Database (NTAD) produced by the Bureau of Transportation Statistics, Federal Railroad Administration.

Railroads - Amtrak Stations (NTAD), 2000 (1:100,000) - Shows Amtrak inter-city railroad passenger terminals in Indiana. Attribute data include services and passenger amenities provided at the station. Data includes some old stations that are closed. Data does not include regional commuter railroad stations that also serve as Amtrak service. Data are from the National Transportation Atlas Database (NTAD) produced by the Bureau of Transportation Statistics, Federal Railroad Administration.

Recreational Facilities (IDNR), 2009 (1:24,000) - Shows outdoor recreation facilities, including facilities managed by federal, state, and local governments, as well as non-government organizations, private and commercial entities, and schools. It does not include sites that are private and not open to the public. Provided by personnel of the Indiana Department of Natural Resources, Division of Outdoor Recreation on February 26, 2009.

Trails (IDNR), 20150306 (1:24,000) - Shows trails and associated attributes of public, off-road recreation, and transportation trails. It includes trails managed by federal, state, and local governments, as well as non-government organizations. Provided by personnel of the Indiana Department of Natural Resources, Division of Outdoor Recreation on March 6, 2015.

Schools in Indiana (IDOE), 2010 - Shows locations for public and non-public schools in Indiana. Personnel of The Polis Center used a geolocator on school address directories provided by the Indiana Department of Education (IDOE). Schools that are included are high schools, middle schools, elementary schools, primary schools, junior high schools, youth centers, and correctional facilities. Attributes include school ID, name, address, contact information, number of students, district, and other information.

School Districts (USCB), 2013 (1:500,000) - The U.S. Census Bureau obtains the boundaries and names for school districts from state officials. The U.S. Census Bureau tabulates data for three types of school districts: elementary, secondary, and unified. The source data was obtained from the USCB download Web site for 2013 TIGER data, and is current as of November 18, 2013.

School Districts (USCB), 2000 (1:500,000) - The U.S. Census Bureau obtains the boundaries and names for school districts from state officials. For Census 2000, the U.S. Census Bureau tabulated data for three types of school districts: elementary, secondary, and unified. Each school district is assigned a five-digit code that is unique within Indiana.

Schools - Higher Education (ICHE), 2007 - Shows the locations of 76 colleges and universities (including 2- and 4-year public institutions and independent institutions) listed on a directory obtained from the Indiana Commission for Higher Education (ICHE). Street addresses were obtained from a Web site of the ICHE (http://www.che.state.in.us/schools/interactivelist.shtml). Personnel of the Indiana University Architect's Office used geocoding to create a point shapefile. Personnel of the Indiana Geological Survey used ESRI ArcMap 9.2 to edit the locations of thirteen (13) records.

Schools (HAZUS), 1992 - Shows locations of school buildings. In addition to public and private schools and universities, the shapefile contains locations of preschools, trade schools, language schools, hair-styling schools, obedience schools, and others. Modified from data provided by the Federal Emergency Management Agency and the National Institute of Building Sciences, as part of a program referred to as 'HAZUS.'

Address Points (IDHS), 20150622 - Shows address points maintained by county agencies in Indiana, provided by personnel of Indiana Department of Homeland Security (IDHS). This layer is part of the NINETEENTH set of data harvested through the ongoing Data Sharing Initiative program by IDHS from local government sources on June 22, 2015. All 92 counties in Indiana are now participating in the program.

This layer is provided 'as-is' and has not been quality control checked for completeness, accuracy, or content, and should not be used for any official or business purpose. Be sure to read the full metadata for each layer. This data set was compiled by IGIC as part of the IndianaMap Data Sharing Initiative between IGIC, Indiana Office of Technology (IOT), Indiana Geographic Information Office (GIO), Indiana Department of Homeland Security (IDHS), Indiana Geological Survey (IGS) and participating Indiana counties to provide the most accurate framework data (including address points, street centerlines, land parcels, and governmental boundaries) for the citizens of Indiana. Data are current as of June 22, 2015. More information is available at the following Web URL: http://www.igic.org/news/index.php?itemid=265

Street Centerlines (IDHS), 201506222 - Shows street centerlines maintained by county agencies in Indiana, provided by personnel of Indiana Department of Homeland Security (IDHS). This layer is part of the NINETEENTH set of data harvested through the ongoing Data Sharing Initiative program by IDHS from local government sources on June 22, 2015. All 92 counties in Indiana are now participating in the program.

This layer is provided 'as-is' and has not been quality control checked for completeness, accuracy, or content, and should not be used for any official or business purpose. Be sure to read the full metadata for each layer. This data set was compiled by IGIC as part of the IndianaMap Data Sharing Initiative between IGIC, Indiana Office of Technology (IOT), Indiana Geographic Information Office (GIO), Indiana Department of Homeland Security (IDHS), Indiana Geological Survey (IGS) and participating Indiana counties to provide the most accurate framework data (including address points, street centerlines, land parcels, and governmental boundaries) for the citizens of Indiana. Data are current as of June 22, 2015. More information is available a the following Web URL: http://www.igic.org/news/index.php?itemid=265

Roads (INDOT), 2005 (1:100,000) - Shows roads, consisting of city streets, county roads, and U.S., state and interstate roads, and non-certified other roads. The data were derived from preexisting INDOT basemaps and databases as well as other external data sources such as TIGER files, county and (or) city source data. Data were acquired between 1998 to 2003. Data were aligned to digital orthoquarterquads (DOQQs) of the U.S. Geological Survey. Some roads were also derived from color orthophotography of the U.S. Department of Agriculture. Provided by INDOT, Business Information and Technology Systems, GIS Mapping personnel.

Roads - Census TIGER Files, 2005 (1:100,000) - Data are from U.S. Department of Commerce, U.S. Census Bureau, Census 2005 Tiger Line Files. Contains realigned street features for the following Indiana counties: Adams, Blackford, Carroll, Cass, Daviess, Delaware, Dubois, Fulton, Hamilton, Hancock, Huntington, Kosciusko, LaGrange, Marion, Martin, Montgomery, Noble, Orange, Parke, Pike, Posey, Pulaski, Ripley, St Joseph, Shelby and Wells. Except for these counties with realigned street features, the 2005 First Edition TIGER/Line files contain very few updates to street features or address ranges from the Census 2000 versions of the TIGER/Line files.

CORS Benchmarks, 20151203 - Shows Continuously Operating Reference Station (CORS) locations in Indiana maintained by the National Oceanic and Atmospheric Administration (NOAA), National Geodetic Survey. Data are current as of December 3, 2015. The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service, manages a network of Continuously Operating Reference Stations (CORS) that provide Global Navigation Satellite System (GNSS) data consisting of carrier phase and code range measurements in support of three dimensional positioning, meteorology, space weather, and geophysical applications throughout the United States, its territories, and a few foreign countries. Surveyors, GIS users, engineers, scientists, and the public at large that collect GPS data can use CORS data to improve the precision of their positions. CORS enhanced post-processed coordinates approach a few centimeters relative to the National Spatial Reference System, both horizontally and vertically. The CORS network is a multi-purpose cooperative endeavor involving government, academic, and private organizations. The sites are independently owned and operated. Each agency shares their data with NGS, and NGS in turn analyzes and distributes the data free of charge. As of August 2015, the CORS network almost 2,000 stations, contributed by over 200 different organizations, and the network continues to expand.

Geodetic Control Points, 20151203 - Shows geodetic control stations maintained by the National Oceanic and Atmospheric Administration (NOAA), National Geodetic Survey. Each geodetic control station has either a precise latitude and longitude used for horizontal control or a precise height used for vertical control (units are meters above the geoid), or both. Data are current as of December 3, 2015.

LiDAR Color Hillshade (2011 - 2013) - This hillshade was created by IGS staff from bare-earth LiDAR Digital Elevation Modesl (DEMs) with hydroflattinging. They are currently available for Indiana as part of the 3-year program through the Indiana Office of Geographic Information to acquire 1-foot resolution orthophotography (RGBI) and elevation data. The DEMs used had either 1.0 meter or 1.5 meter nominal point spacing (NPS) with at least 30 centimeter vertical accuracy. Slope and Hillshade images were calculated from the DEMs using ESRI software and used to visually enhance these data. It was last updated on February 14, 2014.

LiDAR and Elevation DEM (2011 - 2013) - The State of Indiana is completing a 3-year program to acquire 1-foot resolution orthophotography (RGBI) and elevation data for the entire state (counties may elect to buy-up to 6-inch or 3-inch resolution imagery). The program includes new USGS-compliant light detection and ranging (LiDAR) data at either 1.0 meter or 1.5 meter average post spacing, as well as DEM products with 5-foot post spacing. The project is divided into three acquisition areas: center (2011), east (2012), and west (2013).

Classified LiDAR point cloud data (in LAS file format, version 1.2) and bare-earth DEMs (with hydroflattening, in ERDAS IMAGINE format of *.IMG) are available for download from the Indiana Spatial Data Portal (ISDP), University Information Technology Services (UITS), Indiana University. Click the associated links to access the ISDP website for more specific project information, metadata, and download information.

Elevation Contours (1:24,000) - Shows elevation contours provided by 7.5-minute digital topographic quadrangle maps of the USGS (DRGs). Contour interval is typically 10 feet. NOTE: For convenience of downloading, the original DLG data of 1:24,000 quadrangles that are grouped into blocks of 30-minute by 1-degree (1:100,000) quadrangles have now been converted to a statewide Esri File Geodatabase format.

Land Parcels, (IDHS) 20150622 - Shows land parcels maintained by county agencies, as part of the Indiana Data Sharing Initiative (IDHS, IOT, IGIC). NOTE: This is the NINETEENTH set of harvested data. It is current through June 22, 2015. All 92 counties in Indiana are now participating in the program.

This layer is provided 'as-is' and has not been quality control checked for completeness, accuracy, or content, and should not be used for any official or business purpose. Be sure to read the full metadata for each layer. This data set was compiled by IGIC as part of the IndianaMap Data Sharing Initiative between IGIC, Indiana Office of Technology (IOT), Indiana Geographic Information Office (GIO), Indiana Department of Homeland Security (IDHS), Indiana Geological Survey (IGS) and participating Indiana counties to provide the most accurate framework data (including address points, street centerlines, land parcels, and governmental boundaries) for the citizens of Indiana. Data are current as of June 22, 2015. More information is available at the following Web URL: http://www.igic.org/news/index.php?itemid=265

U.S. National Grid, (Delta State University) - The United States National Grid (USNG, 1000 m x 1000 m polygons) constructed by the Center for Interdisciplinary Geospatial Information Technologies at Delta State University with support from the U.S. Geological Survey. The USNG establishes a nationally consistent grid reference system (or "language of location"), and is intended to support emergency response, the general public, and commercial activities. It provides a grid reference system that is seemless across jurisdictional boundaries and is the foundation for a universal base map index. Using the USNG provides an unambiguous where roads and/or road signs have been destroyed.

Places, 1996 (1:24,000) - Shows the locations of populated places, extracted from the Geographic Names Information System (GNIS) developed by the U.S. Geological Survey. Elevations (feet above sea level) are also provided. Includes places shown on 7.5-Min topographic quadrangle maps of the USGS.

Boundaries of Incorporated Cities and Towns, 2001 - Shows incorporated area boundaries for all cities and towns. Provided by personnel of the Indiana Department of Transportation, Graphics Engineering.

Populated Areas, 2000 (1:100,000) - Shows all populated places identified by the U.S. Bureau of the Census in 2000. Attributes include city name, FIPS code, Census type, and selected demographic data. This file does not necessarily reflect the legal limits of any city, town, or incorporation. Data is from U.S. Department of Commerce, U.S. Census Bureau, Census 2000 Tiger Line Files and SF1 tables.

Major Urban Areas, 2000 (1:100,000) - Shows major urban areas identified by the U. S. Census Bureau in 2000 (contains no Census 2000 data). Data are from U.S. Department of Commerce, U.S. Census Bureau, Census 2000 TIGER Line Files.

PLSS CadNSDI, 2014 (BLM, 1:24,000) - Shows the Public Land Survey System of the Cadastral National Spatial Data Infrastructure (PLSS CadNSDI) for Indiana as provided by personnel of the Bureau of Land Management (BLM). The Cadastral National Spatial Data Infrastructure (CadNSDI) Survey Program of the BLM provides the official boundary surveys of all federal-interest lands in the United States, which is over 700 million acres, nationwide. The PLSS is the foundation for many survey-based geographic information systems.

State Boundary, 1998 (1:24,000) - Shows the state boundary, as a polygon, derived from the 7.5-Minute digital raster graphic (DRG) series maps of the U.S. Geological Survey (USGS). The state boundary is part of the Congressional Survey system, also known as the Public Land Survey system. Digitized by personnel of the Indiana Geological Survey.

County Boundaries, 1998 (1:24,000) - County boundaries in polygon format, derived from the 7.5-Minute digital raster graphic (DRG) series maps of the U.S. Geological Survey (USGS). The county boundaries are part of the Congressional Survey system, also known as the Public Land Survey system. Digitized by personnel of the Indiana Geological Survey.

Township and Range Lines, 1998 (1:24,000) - Shows township and range lines, as polygons, derived from the 7.5-Minute digital raster graphic (DRG) series maps of the U.S. Geological Survey (USGS). The township and range lines are part of the Congressional Survey system, also known as the Public Land Survey system. Digitized by personnel of the Indiana Geological Survey.

Land Survey Sections, 1998 (1:24,000) - Shows land survey lines (sections, donations, lots, et al.) in polygon format. Utilizes the Congressional Survey system, also known as the Public Land Survey system. Derived from the 7.5-Minute digital raster graphic (DRG) series maps of the U.S. Geological Survey (USGS). Digitized by personnel of the Indiana Geological Survey.

Scanned Tie Cards in Indiana, 2011 - For the purpose of defining this GIS layer only, the scanned image of a Public Land Survey System Section (PLSS) corner description maintained by the county surveyor is defined as a Tie Card. The points utilized on this GIS layer are computer generated not surveyed. The points were generated with software that Brian L. Wood developed. The 'PLSS-Sections' layer (Indiana Geological Survey) was used as the basis for developing the uniformly spaced points within each section. Some digitized points were added to the point layer where irregular shaped sections occurred.

This layer and the data points are ONLY to be used for the purpose of indexing and accessing the scanned Tie Card document. No coordinates associated with the points are to be used for the purposes of legal surveying. PLSS section corner locations are based on law and the description of a Licensed Surveyor. The descriptions are recorded in each of the 92 counties in Indiana. Licensed Surveyors need these descriptions to locate the corners when conducting legal surveys for public and private land owners. Most counties do not have geographic coordinates for the corners because the PLSS was developed long before the advent of Global Positioning System (GPS) coordinates. Due to changes in the law over time, only a Licensed Surveyor (by statute) is able to interpret and determine the legal coordinates of the PLSS corners. Therefore, in the absence of coordinates of legal surveyed PLSS corners, the Indiana Geographic Information Council (IGIC) - Geodetic Workgroup (public, private and not-for-profit groups) developed computer-generated points of very approximate locations that could be used as an index to the scanned image of the Tie Cards. The result is a GIS layer where one can click on an approximate point location of a PLSS corner; view and print the scanned image of a Tie Card using the website tools (hyperlink, zoom to area or location, select an area and/or identify). Surveyors will still need to contact the County Surveyors Office when conducting research for surveying to verify the most up-to-date information is received. Not all Tie Cards are included in this layer. This layer may only be updated once or twice a year.

Although legal descriptions of Section corners are recorded in County Surveyor's office of all 92 counties of Indiana, this project currently only contains information from the following counties: Bartholomew, Jennings, Marion, Newton, and Wayne. Data for Bartholomew County were updated on April 1, 2011. Data for Marion and Wayne Counties were added in October 26, 2010.

Boundaries of 7.5-Minute Quadrangles, 1999 (1:24,000) - Shows the boundaries of the 7.5-minute topographic quadrangle maps of the U.S. Geological Survey (USGS). Attributes include date of publication and photo revision dates of the printed paper quadrangle maps.

Boundaries of 15-Minute Quadrangles, 1998 (1:100,000) - Shows the boundaries of the 15-minute topographic quadrangle maps of the U.S. Geological Survey (USGS).

Boundaries of 1-degree by 2-degree Quadrangles, 1998 (1:250,000) - Shows the boundaries of the quadrangles of the U.S. Geological Survey (USGS) that are 1 degree of latitude by 2 degrees of longitude.

Time Zones, 2007 (1:24,000) - Shows time zones of Indiana that became effective on November 4, 2007. The boundaries of time zones coincide with selected county boundaries of Indiana.

ZIP Code Tabulation Areas, 2005 (1:100,000) - Shows ZIP Code Tabulation Areas (ZCTAs), which are a statistical entity developed by the U.S. Census Bureau for tabulating summary statistics from Census 2000. ZCTAs are generalized representations of U.S. Postal Service (USPS) ZIP Code service areas. ZCTAs follow census block boundaries, are not exact representations of the USPS ZIP Code delivery areas, and are not stable over time. This data set has been updated using the U.S. Census Bureau Census 2005 TIGER/Line Files (First Edition), which contain updated ZCTAs reflecting U.S. Postal Service ZIP Code changes through October, 2002. There will be no further updates of ZCTAs until required for the 2010 Census.