University of Illinois Urbana-Champaign

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Showing 1201–1230 of 1,550 items
Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources

Thumbnail for Big Muddy River area assessment
Big Muddy River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Big Rivers area assessment
Big Rivers area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Oil investigations in 1917 and 1918
Oil investigations in 1917 and 1918
Illinois State Geological Survey; Barrett, Nellie Okla; Nebel, Merle Louis; Coryell, Horace Noble; Tough, Fred H.; Williston, Samuel H.; Savage, Thomas Edmund

Thumbnail for Conceptual models of erosion and sedimentation in Illinois. Volume II: Level II models, model interactions, keywords, and bibliography
Conceptual models of erosion and sedimentation in Illinois. Volume II: Level II models, model interactions, keywords, and bibliography
Bhowmik, Nani G.; Demissie, Misganaw; Soong, David TaWei; Klock, Anne; Black, Nancy R.; Gross, David L.; Sipe, Timothy W.; Risser, Paul G.

Thumbnail for Oil and gas development in Illinois during 1952
Oil and gas development in Illinois during 1952
Bell, Alfred Hannam; Kline, Virginia