University of Illinois Urbana-Champaign

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Showing 301–330 of 1,500 items
Thumbnail for Bedrock topography of Columbia Quadrangle, Monroe and St. Clair Counties, Illinois
Bedrock topography of Columbia Quadrangle, Monroe and St. Clair Counties, Illinois
Panno, Samuel V.; Angel, Julie C.; Grimley, David A.; Weibel, C. Pius; Stiff, Barbara J.

Thumbnail for Recent Publications
Recent Publications
Submitter: Howard Ding

Thumbnail for Guide to the Illinois Caverns State Natural Area
Guide to the Illinois Caverns State Natural Area
Panno, Samuel V.; Greenberg, S.; Weibel, C. Pius; Gillespie, Patricia K.