University of Illinois Urbana-Champaign

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Showing 541–570 of 13,272 items
Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources

Thumbnail for Illinois River Bluffs Area Assessment
Illinois River Bluffs Area Assessment
Illinois Department of Natural Resources

Thumbnail for Vermilion River area assessment
Vermilion River area assessment
Illinois Department of Natural Resources

Thumbnail for Handbook of Illinois stratigraphy
Handbook of Illinois stratigraphy
Willman, Harold Bowen; Atherton, Elwood; Buschbach, T.C.; Collinson, Charles William; Frye, John Chapman; Hopkins, M.E.; Lineback, Jerry Alvin; Simon, Jack A.

Thumbnail for Field Guide to Amphibians and Reptiles of Illinois
Field Guide to Amphibians and Reptiles of Illinois
Phillips, Christopher A.; Brandon, Ronald A.; Moll, Edward O.

Thumbnail for The INHS IDOT Programs Annual Report 2011
The INHS IDOT Programs Annual Report 2011
Heske, Ed; Carney, Irenka; Warwick,Charles