University of Illinois Urbana-Champaign

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Showing 8281–8310 of 8,540 items
Thumbnail for The geology of Hardin County, and the adjoining part of Pope County.
The geology of Hardin County, and the adjoining part of Pope County.
Weller, Stuart; Butts, Charles; Currier, Louis W.; Salisbury, Rollin D.

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