University of Illinois Urbana-Champaign

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Showing 4591–4620 of 9,202 items
Thumbnail for Structural framework of the Mississippi embayment of southern Illinois
Structural framework of the Mississippi embayment of southern Illinois
Kolata, Dennis R.; Treworgy, Janis D.; Masters, John M.

Thumbnail for Upper Rock River area assessment
Upper Rock River area assessment
Illinois Department of Natural Resources, Office of Scientific Research; Illinois Department of Natural Resources, Illinois State Water Survey