University of Illinois Urbana-Champaign

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Showing 91–120 of 8,602 items
Thumbnail for Soils of Vincennes Quadrangle, Lawrence County, Illinois and Knox County, Indiana
Soils of Vincennes Quadrangle, Lawrence County, Illinois and Knox County, Indiana
United States. Natural Resources Conservation Service; U.S. Department of Agriculture; Natural Resources Conservation Service; Illinois State Geological Survey

Thumbnail for The Illinois State geological survey in war mineral research
The Illinois State geological survey in war mineral research
Illinois State Geological Survey; Leighton, Morris M.

Thumbnail for Bedrock topography of Murphysboro Quadrangle, Jackson County, Illinois
Bedrock topography of Murphysboro Quadrangle, Jackson County, Illinois
Griffith, Gary W.; Denny, F. Brett; Jacobson, Russell J.