Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Bedrock Geology: Indiana, 2010

2010. Denver Harper (GIS compiler), Curt Ault (Data compiler), Stan Keller (Data compiler), Indiana Geological Survey, and H. H. Gray (Data compiler). 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...

2. Bedrock Geology: Illinois, 2005

2005. Illinois State Geological Survey. This feature dataset shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the map Bedrock G...

3. Bedrock Geology: Michigan

2015. State of Michigan. Michigan bedrock geology.

4. Quaternary Geology: Michigan

2015. State of Michigan. Michigan Quaternary Geology.

5. Quaternary Geology Map: Michigan

2020. State of Michigan. Digital version of Quaternary Geology maps of northern and southern Michigan.

6. Geology - Geologic Formations: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file of geologic unit polygons is for educational u...

7. Geology - Hydric Soils: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer is a compilation of the MUPOLYGON featur...

8. Geology - Physiographic Provinces: Maryland

2016. Maryland iMap. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer contains the Province-level physiographi...

9. Karst - Karst geology of: Ohio

2017. Ohio Department of Natural Resources (ODNR). This data is to be used to locate known and indicated karst features, and to define the probable karst terranes.

10. Michigan Geology Bedrock: Michigan

2017. Michigan Department of Natural Resources. Feature service of DNR managed minerals GIS data.