Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. C-15 Geologic atlas of Pope County, Minnesota [Part A]

2003. Harris, K.L. 5 pls. Scales 1:100,000 and 1:200,000. Pl. 1, data-base map; pl. 2, bedrock geology, bedrock topography, and depth to bedrock; pl. 3, surficial geo...

2. Sand and Gravel Resource Potential in Mapped Surficial Material: Indiana, 2003

2003. Indiana Geological Survey and Christina James (digital compiler). SAND_GRAVEL_RESOURCES_IN is a polygon shapefile that identifies sand and gravel permissive tracts in the surficial unconsolidated deposits of India...

3. Abandoned Quarries: Indiana, 2003

2003. Indiana Geological Survey, Denver Harper (Data Processor), Curtis H. Ault (Data Compiler), Paul Irwin (Data Processor), and Walter Hasenmueller (Data Compiler). QUARRIES_ABANDONED_IN was derived from a comma-delimited text file named QUALOC.TXT contained on the following CD-ROM publication: Hasenmueller, W....

4. Abandoned Sand and Pits: Indiana, 2003

2003. Indiana Geological Survey, Paul Irwin (Digital compiler), Walter Hasenmueller (Compiler), Chris Dintaman (Digital compiler), and Denver Harper (Digital compiler). 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...

5. Bedrock Topography Contours: Indiana, 2003

2003. David A. Held (digital compiler), Indiana Geological Survey, Henry H. Gray (author, compiler), Chris Dintaman (digital compiler), and Kimberly H. Sowder (digital compiler). Bedrock topography was converted from the original published map, Indiana Geological Survey Miscellaneous Map 36. The contours define the elevation...

6. Silurian Reef Locations (Point): Indiana, 2003

2003. Indiana Geological Survey, John B. Droste (data compiler), Stanley J. Keller (data compiler), Robert H. Shaver (data compiler), Curtis H. Ault (data compiler), Leroy E. Becker (data compiler), and Chris Dintaman (digital compiler). SILURIAN_REEF_POINTS_MM54_IN is a point shapefile that shows the locations of Silurian rock reef formations in Indiana. These data include five cat...

7. Silurian Reef Locations (Polygon): Indiana, 2003

2003. Indiana Geological Survey, John B. Droste (data compiler), Stanley J. Keller (data compiler), Curtis H. Ault (data compiler), Robert H. Shaver (data compiler), Leroy E. Becker (data compiler), and Chris Dintaman (digital compiler). SILURIAN_REEF_POLYGONS_MM54_IN is a polygon shapefile that shows the general locations of Silurian rock reef bank formations in Indiana. These data...