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101. Index of USGS 100,000 Scale Quadrangles: Indiana
1999. United States Geological Survey. This dataset shows the grid index of USGS 100K quadrangles. Each polygon is attributed with the official USGS quadrangle name and index number.
102. Index of USGS 250,000 Scale Quadrangles: Indiana
1999. United States Geological Survey. This dataset shows the grid index of USGS 250K quadrangles. Each polygon is attributed with the official USGS quadrangle name and index number.
103. Index to U.S. Geological Survey Streamflow Gauging Stations: Indiana
2016. United States Geological Survey. STREAMFLOW_GAUGING_STATIONS_USGS_IN is a point shapefile intended for use as a layer in geographic information systems software. It shows the appro...
104. Indiana Census Blockgroups: Indiana
2000. United States Census Bureau. Census_Blockgroups_TIGER00_IN contains locations for all Indiana blockgroups identified by the US Bureau of the Census. Data is from U.S. Departmen...
105. Indiana Census Tracts: Indiana
2000. United States Census Bureau. Census_Tracts_TIGER00_IN contains locations for all Indiana tracts identified by the US Bureau of the Census. Data is from U.S. Department of Comme...
106. Indiana Counties Census Data: Indiana
2000. Bernardin-Lochmueller & Associates. Census_County_TIGER00_IN contains locations for all Indiana counties and contains census data for each county. Data is from U.S. Department of Comm...
107. Indiana Districts and Representatives for the 113th Congress: Indiana
2013. United States Census Bureau. This data set shows the newly redistricted boundaries (adopted in May 2011) of Indiana's nine districts for the 113th U.S. Congress and provides th...
108. Indiana Districts and Representatives for the 114th Congress: Indiana
2011. United States Census Bureau. This data set shows the newly redistricted boundaries (adopted in May 2011) of Indiana's nine districts for the 114th U.S. Congress and provides th...
109. Indiana Districts for the 111th Congress: Indiana
2000. United States Census Bureau. The following is excerpted from an online document produced by the U.S. Census Bureau pertaining to cartographic boundary files of congressional di...
110. Indiana House Districts, the 118th General Assembly: Indiana
2013. Indiana Election Division. This dataset shows the boundaries of Indiana House Districts for the 118th General Assembly and provides the names and party affiliations of the le...
111. Indiana House Districts, the 119th General Assembly: Indiana
2015. Indiana Election Division. This dataset shows the boundaries of Indiana House Districts for the 119th General Assembly and provides the names and party affiliations of the le...
112. Indiana Major Urban Areas: Indiana
2000. United States Census Bureau. URBAN_AREAS_TIGER00_IN contains major urban areas in Indiana identified by the US Bureau of the Census. Data is from U.S. Department of Commerce, U...
113. Indiana Population Density: Indiana
2000. United States Census Bureau. CENSUS_BLCKGRPS_TIGER00_POPDENS_IN contains populaton densities calculated for all Indiana blockgroups identified by the US Bureau of the Census. D...
114. Indiana Roads from INDOT and TIGER Files: Indiana
2015. Indiana Department of Transportation, Road Inventory Section. ROADS_2015_INDOT_IN.SHP is a line shapefile of Indiana roads, as provided by the Indiana GIS Department of Transportation (INDOT), Road Inventory S...
115. Indiana Senate Districts for the 119th General Assembly: Indiana
2015. Indiana Election Division. This dataset shows the boundaries of Indiana Senate Districts for the 119th General Assembly and provides the names and party affiliations of the l...
116. Indiana Senate Districts, the 118th General Assembly: Indiana
2013. Indiana Election Division. This dataset shows the boundaries of Indiana Senate Districts for the 118th General Assembly and provides the names and party affiliations of the l...
117. IndianaView Archival Index for County-Based Landsat Satellite Imagery : Indiana
2017. Indiana Geological and Water Survey. LANDSAT_IMAGERY_INDEX_IN.SHP is an Esri polygon shapefile that provides access to the Landsat satellite imagery collected and processed by IndianaV...
118. Industrial Mineral Data: Indiana
2004. Indiana Geological Survey. INDUSTRIAL_MINERALS_POINTS_IN is a shapefile that shows the distribution of stratigraphic data for various industrial minerals in Indiana. These da...
119. Industrial Park Locations: Indiana
2006. Indiana Department of Transportation. INDUSTRIAL_PARKS_INDOT_IN is a point shapefile that shows industrial park locations in Indiana. It is derived from data provided by personnel of th...
120. Industrial Waste Sites: Indiana
2015. Indiana Department of Environmental Management, Office of Land Quality. WASTE_INDUSTRIAL_IDEM_IN is a point shapefile that contains industrial waste site locations in Indiana, provided by personnel of Indiana Department...
121. Inferred Connections for Selected Subsurface Dye Traces in Southern Indiana: Indiana
2002. Indiana Geological Survey. KARST_DYE_LINES_IN is a line shapefile that shows inferred subsurface connections between input and detection points of various dye-trace investiga...
122. Input and Detection for Selected Subsurface Dye Traces in Southern: Indiana
2002. Indiana Geological Survey. KARST_DYE_PTS_IN is a point shapefile that shows the locations of input and detection points that were used for selected subsurface dye-trace inves...
123. Inspected Coal Combustion Waste Impoundments: Indiana
2015. Indiana Department of Environmental Management, Office of Land Quality. COAL_COMBUSTION_WASTE_IMPOUNDMENTS_INSPECTED_IDEM_IN.SHP is a polygon shapefile that contains coal combustion waste impoundmentes (CCW) in Indiana ...
124. Institutional Control Sites: Indiana
2015. Indiana Department of Environmental Management, Office of Land Quality. INSTITUTIONAL_CONTROLS_IDEM_IN is a polygon shapefile that contains Institutional Control (IC) site locations in Indiana, provided by personnel of ...
125. Intermodal Terminal Facilities: Indiana
1996. Bureau of Transportation Statistics. BTS metadata states The Intermodal Terminal Facilities data set contains geographic data for trailer-on-flatcar (TOFC) and container-on-flatcar...
126. Inventory of Dams, Derived from EPA BASINS: Indiana
2003. Bernardin-Lochmueller & Associates. DAMS_1996_EPA_IN is a point shapefile developed by the USEPA BASINS 3.0 program and clipped by Bernardin, Lochmueller and Associates. Clips were pe...
127. Lake Shore Features, Derived from the GNIS: Indiana
2002. Bernardin-Lochmueller & Associates. Lake_features_usgs_in is a point shapefile showing the locations and attribute values of lake features extracted from the Geographic Names Informat...
128. Lakes, Ponds, Reservoirs, Swamps, and Marshes in Watersheds: Indiana
2016. United States Geological Survey and the United States Environmental Protection Agency. HYDROGRAPHY_HIGHRES_WATERBODYDISCRETE_NHD_IN.SHP is a polygon shapefile that contains features of lakes, ponds, reservoirs, swamps and marshes in w...
129. Land Cover, Derived from the 2006 National Land Cover Database: Indiana
2016. United States Geological Survey. LAND_COVER_2006_USGS_IN is a grid (30-meter cell size) showing 2006 Land Cover data in Indiana. This grid is a subset of the National Land Cover Da...
130. Land Cover, Derived from the USGS, Version 06-03-99: Indiana
2002. United States Geological Survey. LNDCV_USGS_IN is a grid showing land cover data in Indiana. This grid is a subset of the National Land Cover Data (NLCD) set. There are eighteen ca...
131. Land Parcels Maintained by County Agencies: Indiana
2015. Indiana Department of Homeland Security. COUNTY_LAND_PARCELS_IDHS_IN is an ESRI Geodatabase polygon feature class that contains land parcels maintained by county agencies in Indiana, provi...
132. Land Survey Lines: Indiana
2002. Indiana Geological Survey. LANDSURVEY_SECTIONS_POLY_IN is a 1:24,000-scale polygon shapefile with a projection of Universal Transverse Mercator (UTM) North American Datum (NA...
133. Libraries: Indiana
2000. Indiana State Library. LIBRARIES_ISL_IN is a point shapefile showing the locations of 528 libraries included in Microsoft Excel spreadsheets that are downloadable from th...
134. Liquefaction Potential of Materials: Indiana
2011. Indiana Geological Survey. EARTHQUAKE_LIQUEFACTION_POTENTIAL_MM81_IN is a polygon shapefile that shows highly generalized categories (low, moderate, and high) of liquefaction...
135. Locations of Operation for Active Industrial Minerals Producers in 2016: Indiana
2016. Indiana Geological Survey. INDUSTRIAL_MINERALS_ACTIVE_2016_IN.SHP is a point shapefile that shows the locations of operation for industrial minerals producers that were activ...
136. Managed Lands: Indiana
2018. Indiana Natural Heritage Data Center and Indiana Department of Natural Resources. Managed_Lands_IDNR_IN is an Esri polygon shapefile that contains managed land areas in Indiana, provided by personnel of the Indiana Natural Herita...
137. Manufactured Gas Plants: Indiana
2010. Indiana Department of Environmental Management, Office of Land Quality. MANUFACTURED_GAS_PLANTS_IDEM_IN is a point shapefile that contains locations of manufactured gas plants (MGPs) in Indiana, provided by personnel of...
138. Mean Wind Power at Height of 100 Meters above Ground, Derived from Mesoscale Atmospheric Simulation System and WindMap: Indiana
2007. TrueWind Solutions, LLC. The following is excerpted from an unpublished report by Michael Brower (2004): "Using the MesoMap system, TrueWind has produced maps of mean wind...
139. Mean Wind Power at Height of 50 Meters above Ground, Derived from Mesoscale Atmospheric Simulation System and WindMap: Indiana
2007. TrueWind Solutions, LLC. The following is excerpted from an unpublished report by Michael Brower (2004): "Using the MesoMap system, TrueWind has produced maps of mean wind...
140. Mean Wind Speed at Height of 100 Meters above Ground, Derived from Mesoscale Atmospheric Simulation System and WindMap: Indiana
2007. TrueWind Solutions, LLC. The following is excerpted from an unpublished report by Michael Brower (2004): "Using the MesoMap system, TrueWind has produced maps of mean wind...
141. Mean Wind Speed at Height of 50 Meters above Ground, Derived from Mesoscale Atmospheric Simulation System and WindMap: Indiana
2007. TrueWind Solutions, LLC. The following is excerpted from an unpublished report by Michael Brower (2004): "Using the MesoMap system, TrueWind has produced maps of mean wind...
142. Medical Care Facilities, derived from Essential Facilities Data of the Multi-Hazard Mitigation Planning Data: Indiana
2011. Federal Emergency Management Agency. MEDICAL_CARE_FACILITIES_MHMP_IN.SHP is a point shapefile that shows medical care facilities in Indiana. MEDICAL_CARE_FACILITIES_MHMP_IN.SHP was der...
143. Meteorological, Soil-Water, and Groundwater Monitoring Stations: Indiana
2017. Indiana Geological and Water Survey. WATER_BALANCE_NETWORK_IN.SHP is a point shapefile that shows the locations of thirteen meteorological, soil-water, and groundwater monitoring stati...
144. Mile-Markers for System 1 Roads: Indiana
2016. Indiana Department of Transportation, Road Inventory Section. MILE_MARKERS_SYSTEM1_INDOT_IN.SHP is a point shapefile that contains locations of all mile-marker Reference Post point Inventory for roads in India...
145. Mined-Out Areas in the Colchester Coal Member: Indiana
2014. Indiana Geological Survey. COAL_MINE_MINED_OUT_COLCHESTER_IN_2014 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of the mined-out areas in the Co...
146. Mined-Out Areas in the Danville Coal Member: Indiana
2010. Indiana Geological Survey. COAL_MINE_MINED_OUT_DANVILLE_IN_2010 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of the mined-out areas in the Danv...
147. Mined-Out Areas in the Hymera Coal Member: Indiana
2014. Indiana Geological Survey. COAL_MINE_MINED_OUT_HYMERA_IN_2014 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of the mined-out areas in the Hymera...
148. Mined-Out Areas in the Seelyville Coal Member: Indiana
2012. Indiana Geological Survey. COAL_SEELYVILLE_MINED_OUT_IN_2012.SHP is a polygon-based Esri ArcGIS shapefile that shows the location and extent of the mined-out areas in the See...
149. Minor Civil Divisions: Indiana
2003. United States Census Bureau. The following is excerpted from an Adobe Acrobat PDF document produced by the U.S. Census Bureau pertaining to Minor Civil Divisions (MCD's): "Min...
150. Museums: Indiana
2000. Indiana Geological Survey. MUSEUMS_IGS_IN is a point shapefile showing the locations of 118 museums in Indiana. Using street addresses obtained from Web pages, a shapefile wa...
151. National Natural Landmarks: Indiana
2004. United States National Park Service and Bernardin-Lochmueller & Associates. National_Natural_Landmarks_IN.SHP is a polygon shapefile that contains all national natural landmarks in Indiana. Information regarding landmark si...
152. National Sediment Inventory (NSI) and Data Summaries, Derived from EPA BASINS 3: Indiana
2004. Bernardin-Lochmueller & Associates. SEDIMENT_INVENTORY_EPA_IN is a point shapefile from the National Sediment Inventory developed by the USEPA BASINS 3.0 program and edited by Bernard...
153. National Wetland Inventory Lines: Indiana
2003. United States Fish and Wildlife Service. WETLANDS_NWI_LINE_IN are line shapefiles that contain features of wetlands, lakes, ponds, streams and other water resources in Indiana counties. Th...
154. National Wetland Inventory Points: Indiana
2003. United States Fish and Wildlife Service. WETLANDS_NWI_POINT_IN is a point shapefile that contains features of wetlands, lakes, ponds and other water resources in Indiana counties. Point fe...
155. National Wetland Inventory Polygons by County: Indiana
2003. United States Fish and Wildlife Service. WETLANDS_NWI_POLY_IN is a polygon shapefile that contain features of wetlands, lakes, ponds and other water resources in Indiana counties. The laye...
156. Nationwide Rivers Inventory: Indiana
2007. United States National Park Service. Dataset includes all Indiana river reaches on the Nationwide Rivers Inventory (NRI) listed by the U.S. National Park Service (NPS). The file was cr...
157. Natural Features: Indiana
2002. Bernardin-Lochmueller & Associates. Natural_features_usgs_in is a point shapefile showing the locations and attribute values of natural features extracted from the Geographic Names In...
158. Natural gamma-ray logs in unconsolidated sediments: Indiana
1978. Indiana Geological Survey. GAMMA_RAY_LOGS_IGS_IN.shp shows the locations of the Indiana Geological Survey's natural gamma-ray logs that were collected from 1978 to 2012. It w...
159. Natural Gas, Crude Oil, and Refined Oil Pipelines: Indiana
2002. Indiana Geological Survey. PIPELINES_IGS_IN depicts the location and extent of known natural gas, crude oil, and refined products pipelines in Indiana. PIPELINES, the predece...
160. Natural Regions: Indiana
2002. Indiana Department of Natural Resources, Division of Nature Preserves and Indiana Natural Heritage Data Center. This dataset shows the natural regions and their subsections in Indiana.
161. Non-attainment and Maintenance Areas for Air Pollutants: Indiana
2007. Research and Innovative Technology Administration and Bureau of Transportation Statistics. Polygons in this shapefile indicate areas in Indiana designated as non-attainment for ozone and (or) PM-2.5; or maintenance for ozone, carbon monox...
162. Number of Mapped Cave Entrances per Square Kilometer in Southern Indiana: Indiana
2002. Indiana Geological Survey. KARST_CAVE_DENSITY_IN is a polygon shapefile that shows the density (i.e., number per square kilometer) of mapped cave entrances in Silurian, Devon...
163. Outdoor Recreational Facilities: Indiana
2009. Indiana Department of Natural Resources, Division of Outdoor Recreation. NOTE: The original data set named RECFACILITIES_DNR_OR.SHP was provided to Indiana Geological Survey personnel on August 14, 2003, by Mr. Michael P...
164. Outstanding Rivers Listed by the Natural Resource Commission: Indiana
2004. Natural Resources Commission and Bernardin-Lochmueller & Associates. RIVERS_OUTSTANDING_NRC_IN represents river and stream segments on the NRCs Outstanding Rivers list for Indiana. The source data was last updated i...
165. Ownership Status of Lands Within the Acquirement Boundary: Indiana
2008. United States Fish and Wildlife Service and Patoka River National Wildlife Refuge and Management Area. PATOKA_RIVER_NWR_AREA_USFWS_IN is a polygon shapefile that depicts the ownership status of lands within the acquirement boundary of Patoka River Na...
166. Percentage of Prime Farmland and Percentage of Hydric Soil in Soil Associations: Indiana
2002. United States Department of Agriculture. Prime farmland and Hydric soil percentages were calculated by summarizing the component table associated with each soil map unit featured. Shapefi...
167. Petroleum Reservoir Fields (Oil and Gas): Indiana
2015. Indiana Geological Survey. PETROLEUM_FIELDS_IGS_IN.SHP is an Esri polygon shapefile that depicts the locations and extents of all petroleum reservoir fields in Indiana, as of...
168. Petroleum Well Locations: Indiana
2015. Indiana Geological Survey. PETROLEUM_WELLS_IGS_IN.SHP is an ESRI ArcGIS point shapefile of locations of all known petroleum test wells in Indiana as of January 8, 2015, as co...
169. Physiographic Regions: Indiana
2002. Indiana Geological Survey. PHYSIOGRAPHY_SR61_IN is a polygon shapefile that shows the physiographic regions of Indiana. Detailed descriptions of these regions can be obtained...
170. Pipe Locations in the National Pollutant Discharge Elimination System: Indiana
2013. Indiana Department of Environmental Management, Office of Land Quality. NPDES_PIPE_IDEM_IN is a point shapefile that contains National Pollutant Discharge Elimination System (NPDES) Program pipe locations in Indiana, pr...
171. Police Station Facilities, derived from Essential Facilities Data of the Multi-Hazard Mitigation Planning Data: Indiana
2011. Federal Emergency Management Agency. POLICE_STATIONS_MHMP_IN.SHP is a point shapefile that shows police station facilities in Indiana. POLICE_STATIONS_MHMP_IN.SHP was derived from the ...
172. Populated Areas: Indiana
2000. United States Census Bureau. POPULATED_AREAS_TIGER00_IN contains aerial locations for all populated places identified by the US Bureau of the Census. Attributes include city na...
173. Populated Places points: Indiana
1996. Bernardin-Lochmueller & Associates. The shapefile Places_points_usgs_in is a point shapefile showing the locations and attribute values of populated places extracted from the Geograph...
174. Population Densities and Changes of Densities of Minor Civil Divisions from 1890 to 2000: Indiana
1890. United States Census Bureau. Historical census data for minor civil divisions (also known as "civil townships") in Indiana were provided by personnel of the Indiana Business Re...
175. Populations and Population Densities of Minor Civil Divisions from 1890 to 2000: Indiana
1890. United States Census Bureau. Historical census data for minor civil divisions (also known as "civil townships") in Indiana were provided by personnel of the Indiana Business Re...
176. Ports derived from the U.S. Army Corps of Engineers: Indiana
2001. Bureau of Transportation Statistics. The U.S. Army Corps of Engineers (USACE) Ports database is an extract from the National Waterway Network database consisting of 224 points coded as...
177. Predicted Responses of Geologic Materials to Seismically Induced Ground Shaking: Indiana
2011. Indiana Geological Survey. SEISMIC_SHAKING_PREDICTED_RESPONSE_RP35_IN is a polygon shapefile that shows the distribution and classification of National Earthquake Hazards Red...
178. Public Recreational and Alternative Transportation Trails: Indiana
2017. Indiana Department of Natural Resources, Division of Outdoor Recreation. NOTE: The original data set named INTRAILS.SHP was provided to Indiana Geological and Water Survey personnel on March 12, 2002, by Mr. Michael P. M...
179. Public Use Airports: Indiana
2001. Bureau of Transportation Statistics. Bernardin-Lochmueller and Associates (BLA) created an Indiana subset of the NTAD airports dataset described below. Dataset includes airports, heli...
180. Public-Use Airports: Indiana
2005. Indiana Department of Transportation. AIRPORTS_PUBLIC_INDOT_IN is a point shapefile that shows public-use airports in Indiana. It is derived from data provided by personnel of the India...
181. Quaternary Geologic Map : Indiana
2002. Indiana Geological Survey. SURFICIAL_GEOL_MM49_IN is a polygon shapefile that shows surficial geology in Indiana at a scale of 1:500,000. The mapped units include textural as...
182. Rail System: Indiana
2006. Indiana Department of Transportation. RAIL_SYSTEM_INDOT_IN is a line shapefile that shows the 2006 rail system of Indiana. It is derived from data provided by personnel of the Indiana D...
183. Railroad Crossings: Indiana
2006. Indiana Department of Transportation, Business Information and Technology Systems, GIS Mapping. RAIL_CROSSINGS_INDOT_IN is a point shapefile that contains locations of rail crossings in Indiana, provided by personnel of Indiana Department of T...
184. Railroad Network: Indiana
2002. Bureau of Transportation Statistics. RAILROAD_NTAD_100K_SW is a 1:100,000 scale line shapefile which is a subset of the rail network. Bureau of Transportation Statistics metadata state...
185. Registered Naloxone Dispensing Entities: Indiana
2018. Indiana Geological and Water Survey. NALOXONE_PROVIDERS_ISDH_IN.SHP is an Esri point shapefile showing the locations of 705 registered Naloxone Entities in Indiana. These registered en...
186. Religious Centers: Indiana
2007. United States Geological Survey. A data set showing the locations of religious centers and places of worship in Indiana. The base file for this effort was the USGS Geographic Names...
187. Residential Care Facilities, Nursing Homes, and Hospices: Indiana
2007. Indiana State Department of Health. CARE_LONG_TERM_FACILITIES_ISDH_IN is a point shapefile showing the locations of 86 residential care facilities, 525 long-term care facilities (nurs...
188. Rivers, Inundation Areas, Canals, Submerged Streams, and Other Linear Waterbodies in Watersheds: Indiana
2016. United States Geological Survey and the United States Environmental Protection Agency. HYDROGRAPHY_LOCALRES_WATERBODYLINEAR_NHD_IN.SHP is a polygon shapefile that contains features of rivers, inundation areas, canals, ditches, submerg...
189. Sand and Gravel Resource Potential in Mapped Surficial Material: Indiana
2003. Indiana Geological Survey. SAND_GRAVEL_RESOURCES_IN is a polygon shapefile that identifies sand and gravel permissive tracts in the surficial unconsolidated deposits of India...
190. School Districts for Indiana in 2000: Indiana
2003. United States Census Bureau. The following is excerpted from an online document produced by the U.S. Census Bureau pertaining to unified school districts (found at http://www.c...
191. School Districts for Indiana in 2013: Indiana
2013. United States Census Bureau. The following is excerpted from an online document produced by the U.S. Census Bureau pertaining to unified school districts published in 2000 (fou...
192. School Facilities, derived from Essential Facilities Data of the Multi-Hazard Mitigation Planning Data: Indiana
2011. Federal Emergency Management Agency. SCHOOL_FACILITIES_MHMP_IN.SHP is a point shapefile that shows school facilities in Indiana, with the exception of some universities. SCHOOL_FACILIT...
193. Schools, Derived from HAZUS: Indiana
2002. Federal Emergency Management Agency. SCHOOLS_HAZUS_IN is a point shapefile that shows locations of school buildings in Indiana. In addition to public and private schools and universiti...
194. Schools: Indiana
2010. Indiana Department of Education. SCHOOLS_POLIS_IDOE_IN is point shapefile providing locations for public and non-public schools in Indiana. Schools that are included are high schoo...
195. Seismic Refraction Data for Indiana: Indiana
2002. Indiana Geological Survey. SEISMIC_DATA_IN is a point shapefile created from a shapefile named SEISMIC_DATA, which was derived from a Microsoft Excel spreadsheet named SEISMI...
196. Senate Districts for the 120th General Assembly: Indiana
2017. Indiana Election Division. This dataset shows the boundaries of Indiana Senate Districts for the 120th General Assembly. Attributes include name, party affiliation, and conta...
197. Septage Waste Sites: Indiana
2013. Indiana Department of Environmental Management, Office of Land Quality. WASTE_SEPTAGE_SITES_IDEM_IN is a point shapefile that contains septage waste site locations in Indiana, provided by personnel of Indiana Department...
198. Shrink-Swell Characteristics, Derived from STATSGO: Indiana
2002. Indiana Geological Survey. The 1994 State Soil Geographic (STATSGO) database for Indiana, obtained from the U.S. Department of Agriculture (USDA), Natural Resources Conservat...
199. Silurian Reef Locations (Point): Indiana
2003. Indiana Geological Survey. SILURIAN_REEF_POINTS_MM54_IN is a point shapefile that shows the locations of Silurian rock reef formations in Indiana. These data include five cat...
200. Silurian Reef Locations (Polygon): Indiana
2003. Indiana Geological Survey. SILURIAN_REEF_POLYGONS_MM54_IN is a polygon shapefile that shows the general locations of Silurian rock reef bank formations in Indiana. These data...
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