University of Illinois Urbana-Champaign

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Showing 1561–1590 of 11,796 items
Thumbnail for Glacial tills of Northwestern Illinois
Glacial tills of Northwestern Illinois
Illinois State Geological Survey; Frye, John Chapman

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Recent Publications
Submitter: Howard Ding

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Back Matter
Submitter: Howard Ding

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