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Shapefile
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Public
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Subject
Geoscientific Information
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Collection
Illinois Geospatial Data Clearinghouse
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Polygon
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1 - 4 of 4
Search Results
1. Driftless Areas: Illinois, 2004
1994. Illinois State Geological Survey. This is a polygon feature class containing driftless areas in Illinois. These areas are analogous to areas of the state where the bedrock surface i...
2. Soil Associations Map (500K): Illinois, 2004
1984. Illinois State Geological Survey. This is a polygon feature class showing soil associations in Illinois, from the General Soil Map of Illinois (Fehrenbacher, 1982). Created in 1984 ...
3. Stack-Unit Mapping of Geologic Materials to a Depth of 15 Meters: Illinois, 2004
1995. Illinois State Geological Survey. This is an SDE polygon feature class containing stack-unit map designations for Illinois. The primary source is ISGS Circular 542, Stack-unit Mappi...
4. Woodfordian Moraines of Illinois, 2004
1991. Illinois State Geological Survey. This is an SDE polygon feature class containing named Woodfordian moraines, or Wisconsinan end moraines, of Illinois. Scale is 1:500,000. The prima...