University of Illinois Urbana-Champaign

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Showing 241–270 of 2,099 items
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Upper Rock River area assessment
Illinois Department of Natural Resources, Office of Scientific Research; Illinois Department of Natural Resources, Illinois State Water Survey

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Recent Publications
Submitter: Howard Ding

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Additional Content
Submitter: Howard Ding

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ISGS Geonews
Illinois State Geological Survey

Thumbnail for Illinois ... football guide. 1990
Illinois ... football guide. 1990
Submitter: Howard Ding