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1.
Bedrock Geology: Indiana

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...

2.
Bedrock Geology: Illinois, 2005

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.
Vector Created with Sketch.

Michigan Bedrock Geology: Michigan

Minnesota Department of Natural Resources. Bedrock geology polygons as digitized from the'1987 Michigan Bedrock Geology map.

4.
Vector Created with Sketch.

Bedrock Geology: Michigan

Michigan bedrock geology.

5.
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Quaternary Geology: Michigan

Michigan Quaternary Geology.

6.
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Quaternary Geology Map: Michigan

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

7.
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Statemap Surficial Geologys: Iowa

2018. Iowa Geological Survey. Surficial Geology of Iowa Each zip file contains a shapefile of the area specified.

8.
Geology - Geologic Formations: Maryland

Geology - Geologic Formations: Maryland

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...

9.
Geology - Hydric Soils: Maryland

Geology - Hydric Soils: Maryland

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...

10.
Geology - Physiographic Provinces: Maryland

Geology - Physiographic Provinces: Maryland

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...

11.
Vector Created with Sketch.

Statemap Bedrock Geologys: Iowa

Each zip file contains a shapefile of the specified area.

12.
Bedrock Geology of Illinois - Geologic Units, 2004

Bedrock Geology of Illinois - Geologic Units, 2004

1996. Illinois State Geological Survey. This feature class shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the Geologic Map of...

13.
Bedrock geology of Indiana, from the Regional Geologic Map Series of the Indiana Geological Survey: Indiana

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...

14.
Polygon

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...

15.
Sand and Gravel Resource Potential in Mapped Surficial Material: Indiana

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...

16.
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, ...

17.
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...

18.
Bedrock Topography Contours: Indiana

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...

19.
Buried Bedrock Surface: Illinois, 2004

Buried Bedrock Surface: Illinois, 2004

1994. Herzog, B.L.. B.J. Stiff, C.A. Chenoweth, K.L. Warner, J.B. Sievering, C. Avery. The Buried Bedrock Surface of Illinois map represents the first revision of the bedrock topography map since the second edition was published by th...

20.
Polygon

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 ...