University of Illinois Urbana-Champaign

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Showing 7351–7380 of 9,414 items
Thumbnail for A Study of the Amsden Formation
A Study of the Amsden Formation
Gorman, Donald Robert

Thumbnail for Lower Sangamon River area assessment
Lower Sangamon River area assessment
Submitter: Steven Mccauley

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