Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1.
Abandoned Quarries: Indiana

Abandoned Quarries: Indiana

2003. Indiana Geological Survey. QUARRIES_ABANDONED_IN was derived from a comma-delimited text file named "QUALOC.TXT" contained on the following CD-ROM publication: Hasenmueller, ...

2.
Abandoned Sand and Pits: Indiana

Abandoned Sand and Pits: Indiana

2003. Indiana Geological Survey. 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.
Active Mines in the Danville Coal Member: Indiana

Active Mines in the Danville Coal Member: Indiana

2010. Indiana Geological Survey. COAL_MINE_ACTIVE_DANVILLE_IN_2010 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of active surface and underground coa...

4.
Active Mines in the Hymera Coal Member: Indiana

Active Mines in the Hymera Coal Member: Indiana

2014. Indiana Geological Survey. COAL_MINE_ACTIVE_HYMERA_IN_2014 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of active surface and underground coal ...

5.
Mixed

Aggregate Resource Mapping Program: Minnesota

2018. Minnesota Department of Natural Resources (DNR) - Lands and Minerals. The Aggregate Resource Mapping Program (ARMP) began in 1984 when the Minnesota Legislature passed a law (Minnnesota Statutes, section 84.94) to: -...

6.
Polygon

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...

7.
Mixed

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...

8.
Alexandra Mountains: Antarctica

Alexandra Mountains: Antarctica

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

9.
Point image/svg+xml

Ambient Groundwater Monitoring Wells, by Major Aquifer Lithology: Ohio

2017. Ohio Environmental Protection Agency. Ohio EPA Division of Drinking and Ground Waters maintains the Ambient Ground Water Monitoring Network as part of an effort to characterize general ...

10.
Vector Created with Sketch.

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...

11.
Aquifer Characteristics Of Glacial Drift: Michigan

Aquifer Characteristics Of Glacial Drift: Michigan

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

12.
Aquifer sensitivity in shallow aquifers: Indiana

Aquifer sensitivity in shallow aquifers: Indiana

2015. Indiana Geological Survey. Aquifer_Sensitivity_Near_Surface_IN is a raster data layer that displays a reclassified raster data layer of estimated rates of diffuse groundwater...

13.
Areas of sinkholes and sinking-stream basins with locations of cave openings and springs in Central Southern Indiana

Areas of sinkholes and sinking-stream basins with locations of cave openings and springs in Central Southern Indiana

2002. Powell, Richard L., cartographer. This map data was compiled in 1997 from information available at the time, but was unpublished until 2002; the map does not reflect any changes in ...

14.
Vector Created with Sketch.

Basins: Allegheny County, Pennsylvania

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

15.
Bedrock Aquifer Systems: Indiana

Bedrock Aquifer Systems: Indiana

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...

16.
Bedrock Aquifer Systems: Indiana

Bedrock Aquifer Systems: Indiana

1994. United States Geological Survey. Four types of bedrock aquifers in 12 water-management basins identified by the Indiana Natural Resources Commission (INRC) in Indiana were identifi...

17.
Vector Created with Sketch.

Bedrock Exposures in Iowa

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

18.
Bedrock Geology 24K - Facies: Ohio

Bedrock Geology 24K - Facies: Ohio

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 - Mines Line: Ohio

Bedrock Geology 24K - Mines Line: Ohio

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 - Mines Ply: Ohio

Bedrock Geology 24K - Mines Ply: Ohio

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...