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You searched for: Publisher Illinois State Geological Survey Remove constraint Publisher: Illinois State Geological Survey Resource Type Polygon data Remove constraint Resource Type: Polygon data Time Period 1950-1999 Remove constraint Time Period: 1950-1999

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1.

Bedrock Geology - Geologic Units [Illinois] Datasets datasets university-of-illinois-urbana-champaign

1967. Illinois State Geological Survey. Distribution and extent of the bedrock geologic units within Illinois. Data originally from the Geologic Map of Illinois (1967) by Willman and et. ... Illinois State Geological Survey.

2.

Driftless Areas [Illinois] university-of-illinois-urbana-champaign

1994. Illinois State Geological Survey. Driftless areas in Illinois. These areas are analogous to areas of the state where the bedrock surface is not buried by glacial drift. Data origina... Illinois State Geological Survey.

3.

Glacial Boundaries [Illinois] Datasets datasets university-of-illinois-urbana-champaign

1998. Illinois State Geological Survey. Glacial boundary lines representing the extent of glaciation for major glacial episodes in Illinois. Data originally from Quaternary Deposits in Il... Illinois State Geological Survey.

4.

Political Townships [Illinois], 2009 Datasets datasets university-of-illinois-urbana-champaign

1985. Tom Heavisides, Office of Realty and Environmental Planning, Illinois Department of Natural Resources, and Illinois State Geological Survey. Political (voting) township boundaries of Illinois as of 1985. Attributes include the name, FIPS code, township name and number. OREP 1985. Illinois State Geological Survey.

5.

Soil Associations Map (500K) [Illinois] Datasets datasets university-of-illinois-urbana-champaign

1984. Illinois State Geological Survey. Soil associations in Illinois. A soil association is a group of related soil series that generally occur in a characteristic pattern of landscapes ... Illinois State Geological Survey.

7.

Streams and Shorelines [Illinois] Datasets datasets university-of-illinois-urbana-champaign

1994. Illinois Department of Natural Resources and Illinois State Geological Survey. Streams and shorelines for Illinois. Derived from USGS 1:100,000 Digital Line Graph files, transportation layer 1980-1986. Each arc carries attribu... Illinois State Geological Survey.

8.

Woodfordian Moraines [Illinois] university-of-illinois-urbana-champaign

1991. Illinois State Geological Survey. Named Woodfordian moraines, or Wisconsinan End Moraines, of Illinois. Data originally from ISGS Bulletin 94, Pleistocene Stratigraphy of Illinois, ... Illinois State Geological Survey.