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You searched for: Genre Aerial imagery Remove constraint Genre: Aerial imagery Creator Illinois State Geological Survey Remove constraint Creator: Illinois State Geological Survey Publisher University of Illinois Urbana-Champaign Remove constraint Publisher: University of Illinois Urbana-Champaign
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1.

County Boundaries: Illinois, 2003 illinois

1968-1979. Illinois State Geological Survey. This data set contains Illinois county boundaries in line and polygon formats. The polygon attribute data include county name and number (FIPS) des...

2.

Driftless Areas: Illinois, 2004 illinois

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...

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Raster

Historical Aerial Photography: Illinois, 1937-1947 illinois

1936-1941. Illinois State Geological Survey. The primary data set consists of historical black and white aerial photographs from Illinois acquired during 1936 to 1941. Alternative years of pho...

6.

Major Bedrock Valleys: Illinois, 2004 illinois

1994. Illinois State Geological Survey. This feature dataset shows continuous lines representing the lowermost elevations/locations of (buried) bedrock valleys in the state of Illinois. A...

8.

NAIP Digital Orthophoto Quadrangle Data: Illinois, 2014 illinois

2005. USDA-FSA-APFO Aerial Photography Field Office and Illinois State Geological Survey. This data set contains imagery from the National Agricultural Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural g...

10.

Woodfordian Moraines of Illinois, 2004 illinois

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...