University of Illinois Urbana-Champaign

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Showing 511–540 of 1,131 items
Thumbnail for Thorn Creek area assessment
Thorn Creek area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Status of Endangered and Threatened Sand Area Species of the Illinois Flora
Status of Endangered and Threatened Sand Area Species of the Illinois Flora
Phillippe, Loy R.; Molano-Flores, Brenda; Murphy, Michael J.C.; Marcum, Paul B.; Ebinger, John E.