University of Illinois Urbana-Champaign

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Showing 3211–3240 of 9,241 items
Thumbnail for Sinkhole Distribution and Density of Waterloo Quadrangle, Monroe County, Illinois
Sinkhole Distribution and Density of Waterloo Quadrangle, Monroe County, Illinois
Panno, Samuel V.; Angel, Julie C.; Nelson, Dan O.; Weibel, C. Pius; Luman, Donald E.; Denny, F. Brett

Thumbnail for Critical Trends Assessment Program 2003-2004 Report
Critical Trends Assessment Program 2003-2004 Report
Illinois Department of Natural Resources