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1. Preliminary sketch of the geology of India

1877.  Geological Survey of India. Cartographic Details: Scale 1:4055040. 1 in. to 64 miles. To accompany: A manual of the geology of India. Pt. 1-2. Calcutta: Geological Survey Offi...

2. [Geology of the southern Michigan].

9999. unknown. Edges trimmed, possibly from a larger map showing railroads. Hand col. showing [geology?]. 1 map : col. ; 28 x 25 cm. This map is in the public dom...

3. 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...

4. 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...

5. Outline of the geology of the globe.

1853. Hitchcock, O.H. Relief shown pictorially. Includes diagramatic view of the world's major mountains and map of "supposed Antarctic continent." 1 map : col. ; 46 x 5...

6. Geology: [Monroe County, Ind.].

1960. Scale not given.

7. Bedrock Geology: Michigan

2015. State of Michigan. Michigan bedrock geology.

8. Quaternary Geology: Michigan

2015. State of Michigan. Michigan Quaternary Geology.

9. Quaternary Geology Map: Michigan

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

10. Glacial geology of Indiana

1958. Wayne, William J.(William John), 1922-cartographer. "Base modified from U.S. Geological Survey Base map of Indiana, 1953."; "Reprinted with minor modifications, 1963." Scale 1:1,000,000.

11. 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...

12. 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...

13. 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...

14. 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.

15. Michigan Geology Bedrock: Michigan

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

16. Surficial Geology: Wasington County, Minnesota

2016. Washington County Public Works. Shapefile of surficial geology of Washington County. Digitized from 1:100,000 scale paper version of County Atlas surficial geology map of surface ...

17. Bedrock Geology 500K - Contacts: Ohio

1989. Ohio Department of Natural Resources (ODNR). This dataset contains the 1:500,000-scale bedrock geology of Ohio. The bedrock geology dataset was originally derived from the 1:24,000-scale bedro...

18. Bedrock Geology 500K - Faults: Ohio

1989. Ohio Department of Natural Resources (ODNR). This dataset contains the 1:500,000-scale bedrock geology of Ohio. The bedrock geology dataset was originally derived from the 1:24,000-scale bedro...

19. Bedrock Geology 24K - Facies: Ohio

1960. Ohio Department of Natural Resources (ODNR). 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. Surface Geology: Oakland County, Michigan

0. Oakland County, Michigan. This polygon feature class represents the spatial extent of surficial geology deposits, glacial and sub-glacial drainage, and historical glacial la...