Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Abandoned Quarries: Indiana, 2003

2003. Indiana Geological Survey, Denver Harper (Data Processor), Curtis H. Ault (Data Compiler), Paul Irwin (Data Processor), and Walter Hasenmueller (Data Compiler). QUARRIES_ABANDONED_IN was derived from a comma-delimited text file named QUALOC.TXT contained on the following CD-ROM publication: Hasenmueller, W....

2. Abandoned Sand and Pits: Indiana, 2003

2003. Indiana Geological Survey, Paul Irwin (Digital compiler), Walter Hasenmueller (Compiler), Chris Dintaman (Digital compiler), and Denver Harper (Digital compiler). SAND_GRAVEL_PITS_ABANDONED_IN is a point shapefile that shows the locations of abandoned sand and gravel pits in Indiana. It is derived from an unp...

3. Aggregate Resource Mapping Program: Minnesota

2014. Minnesota Department of Natural Resources (DNR). The Aggregate Resource Mapping Program (ARMP) began in 1984 when the Minnesota Legislature passed a law (Minnnesota Statutes, section 84.94) to: - ...

4. Aggregate Resources 1997, 2020 and 2040: Metro Twin Cities, Minnesota

2000. Metropolitan Council. The Aggregate Resources (sand, gravel and limestone and dolomite) dataset contains three separate shape files for aggregate resources for 1997, 202...

5. AgroEcoregions: Minnesota

2014. Minnesota Department of Agriculture. Minnesota has 39 agroecoregions. Each agroecoregion is associated with a specific combination of soil types, landscape and climatic features, and l...

6. Alexandra Mountains: Antarctica

1977. Wade; Cathey; Oldham. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:250,000 Geologic Reconnaissance Series.

7. Anthracite Coal Mine Permits: Pennsylvania

2016. Pennsylvania Dept. of Environmental Protection, Bureau of Mining and Reclamation (BMR). Pennsylvania state law requires those who wish to conduct mining activities within the Commonwealth to apply for permits issued by the Pennsylvania...

8. Aquifer Characteristics Of Glacial Drift: Michigan

2017. This shape file was derived from the 1981 publication of the Hydrological Atlas of Michigan plate 26. Three plates of the Aquifer Characteristics o...

9. Aquifer sensitivity in shallow aquifers: Indiana, 2015

2015. Indiana Geological Survey (IGS), Center for Geospatial Data Analysis (CGDA), and Sally L. Letsinger (data compiler). Aquifer_Sensitivity_Near_Surface_IN is a raster data layer that displays a reclassified raster data layer of estimated rates of diffuse groundwater...

10. Basins: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. 3 Rivers Wet Weather Demonstration Program Outreach Planning Basins.

11. Bedrock Aquifer Systems: Indiana, 2008

2008. Sally L. Letsinger (data compiler), Anne Hereford (data compiler), United States Geological Survey (USGS) (data author), Indiana Geological Survey (IGS) (data compiler), and Center for Geospatial Data Analysis (CGDA) (data compiler). Four types of bedrock aquifers in 12 water-management basins identified by the Indiana Natural Resources Commission (INRC) in Indiana were identifi...

12. Bedrock Aquifer Systems: Indiana, 2011

2011. Indiana Department of Natural Resources, Division of Water. AQUIFER_SYSTEMS_BEDROCK_IDNR_IN is a polygon shapefile that shows bedrock aquifer systems of the State of Indiana. The source scale of the map depi...

13. Bedrock Exposures in Iowa

2018. This polygon data coverage was derived from the Iowa county soil surveys that were digitized by the Iowa Cooperative Soil Survey (ICSS), which incl...

14. Bedrock Geology 24K - Facies: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

15. Bedrock Geology 24K - Mines Line: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

16. Bedrock Geology 24K - Mines Ply: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

17. Bedrock Geology 24K - Mines Pnt: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

18. Bedrock Geology 24K - Misc Pnt: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

19. Bedrock Geology 24K - Structure Line: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

20. Bedrock Geology 24K - Structure Pnt: Ohio

2016. Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...