University of Illinois Urbana-Champaign

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Showing 4201–4230 of 4,440 items
Thumbnail for Chicago River/Lake Shore area assessment
Chicago River/Lake Shore area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Driftless area assessment
Driftless area assessment
Submitter: Steven Mccauley

Thumbnail for Illinois highway and agricultural drainage laws
Illinois highway and agricultural drainage laws
Drablos, Carroll J.W.; Jones, Benjamin Angus, Jr.

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