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21.
Vector

Quaternary Geology 500k - Lines: Ohio ohio-state

Ohio Department of Natural Resources. Since the publication of the Glacial map of Ohio (Goldthwait, White, and Forsyth, 1961, U.S. Geological Survey Miscellaneous Geologic Investigation...

22.
Vector

Karst - Karst Geology Of Ohio: Ohio ohio-state

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

26.

Physiographic Regions: Indiana purdue

2002. Indiana Geological Survey. PHYSIOGRAPHY_SR61_IN is a polygon shapefile that shows the physiographic regions of Indiana. Detailed descriptions of these regions can be obtained...

27.

Seismic Refraction Data for Indiana: Indiana purdue

2002. Indiana Geological Survey. SEISMIC_DATA_IN is a point shapefile created from a shapefile named SEISMIC_DATA, which was derived from a Microsoft Excel spreadsheet named SEISMI...

28.

Silurian Reef Locations (Polygon): Indiana purdue

2003. Indiana Geological Survey. SILURIAN_REEF_POLYGONS_MM54_IN is a polygon shapefile that shows the general locations of Silurian rock reef bank formations in Indiana. These data...

29.

Natural Features: Indiana purdue

2002. Bernardin-Lochmueller & Associates. Natural_features_usgs_in is a point shapefile showing the locations and attribute values of natural features extracted from the Geographic Names In...

30.

Silurian Reef Locations (Point): Indiana purdue

2003. Indiana Geological Survey. 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...