Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Collection Illinois Geospatial Data Clearinghouse Remove constraint Collection: Illinois Geospatial Data Clearinghouse Data type Polygon Remove constraint Data type: Polygon
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1.
Driftless Areas: Illinois, 2004

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.
Municipal Boundaries: Incorporated Places: Illinois, 2000

Municipal Boundaries: Incorporated Places: Illinois, 2000

2006. US Census and Illinois State Geological Survey. This polygon feature class shows incorporated places and census designated places in Illinois as of the 2000 US census. The data are identical to t...

3.
Political Districts and Boundaries: Illinois, 2006 and 2007

Political Districts and Boundaries: Illinois, 2006 and 2007

1980-2009. Various, by feature class. This feature dataset contains data layers that show political districts and boundaries in Illinois, including political townships, state representa...

4.
Polygon

Political Townships: Illinois, 2009

1985. Tom Heavisides, Office of Realty and Environmental Planning. This map shows political township boundaries of Illinois.

5.
Polygon

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 ...

6.
Polygon

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...

7.
Polygon

State Plane Zones: Illinois, 2007

2007. Illinois State Geological Survey. This polygon feature class shows State Plane Coordinate System zones in Illinois.

8.
Polygon

Streams and Shorelines: Illinois, 2004

1994. Illinois Department of Natural Resources. This dataset contains data representing streams and shorelines in Illinois and portions of surrounding states as derived from US Geological Survey ...

9.
UTM Zones: Illinois, 2007

UTM Zones: Illinois, 2007

2007. Illinois State Geological Survey. This polygon feature class shows UTM zones in Illinois.

10.
Woodfordian Moraines of Illinois, 2004

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...