Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. 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...

2. 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 ...

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

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

4. 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...

5. Bedrock Aquifer Systems: Indiana

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

6. Bedrock Geology: Dublin, Ohio

2015. Environmental data around the City of Dublin, OH, USA.

7. Bedrock Geology: Indiana

2010. Indiana Geological Survey. BEDROCK_GEOL_MM48_IN is a polygon shapefile that shows bedrock geology of the state of Indiana at a scale of 1:500,000. The mapped stratigraphic un...

8. Bedrock geology of Indiana, from the Regional Geologic Map Series of the Indiana Geological Survey: Indiana

2013. Indiana Geological Survey. BEDROCK_GEOL_RGM_IN is a polygon shapefile that shows the bedrock geology of the state of Indiana, produced from the Indiana Geological Survey Regi...

9. Bedrock Topography Contours: Indiana

2003. Indiana Geological Survey. Bedrock topography was converted from the original published map, Indiana Geological Survey Miscellaneous Map 36. The contours define the elevation...

10. Bedrock Type: Wisconsin, 2008

2008. Wisconsin Department of Natural Resources. This layer consists of a polygon coverage at 1:500,000 scale with information about bedrock type used in the GCSM. Bedrock is the consolidated mate...

11. Census Blocks 2000: Indiana

2000. United States Census Bureau. The following is excerpted from an on-line document produced by ESRI pertaining to the Census 2000 TIGER Line data: "The Census 2000 TIGER/Line sh...

12. Department of natural Resources Watershed Suite: Minnesota

2018. Minnesota Department of Natural Resources (DNR). The MNDNR Watershed Suite is a collection of watershed delineations at various levels, flow network lines, and pour points. Follow the links below ...

13. Depth Ranges of the Colchester Coal Member: Indiana

2014. Indiana Geological Survey. In the past a series of reports on coal resources of selected counties in Indiana were published as part of the Special Report series of the Indian...

14. Depth Ranges of the Hymera Coal Member: Indiana

2014. Indiana Geological Survey. In the past a series of reports on coal resources of selected counties in Indiana were published as part of the Special Report series of the Indian...

15. Depth Ranges of the Seelyville Coal Member: Indiana

2011. Indiana Geological Survey. In the past a series of reports on coal resources of selected counties in Indiana was published as part of the Special Report series of the Indiana...

16. Depth to Bedrock: Wisconsin, 2008

2008. Wisconsin Department of Natural Resources. This layer consists of a 1:250,000-scale polygon coverage containing depth-to-bedrock estimates and related information used in preparing the GCSM ...

17. Depth to the Danville Coal Member (Dugger Formation, Pennsylvanian System), Derived from Coal Availability Investigations: Indiana

2011. Indiana Geological Survey. In the past a series of reports on coal resources of selected counties in Indiana was published as part of the Special Report series of the Indiana...

18. Depth to the Springfield Coal Member (Carbondale Formation, Pennsylvanian System), Derived from Coal Availability Investigations: Indiana

2011. Indiana Geological Survey. In the past a series of reports on coal resources of selected counties in Indiana was published as part of the Special Report series of the Indiana...

19. Depth to Water Table: Wisconsin, 2008

2008. Wisconsin Department of Natural Resources. This is a polygon layer at1:250,000 scale containing depth-to-water table estimates used in preparing the GCSM for Wisconsin. The depth to water ta...

20. Driftless Areas: Illinois, 2004

1994. Illinois State Geological Survey. This is a polygon feature class containing driftless areas in Illinois. These areas are analogous to areas of the state where the bedrock surface i...