University of Illinois Urbana-Champaign

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Showing 3811–3840 of 3,966 items
Thumbnail for Illinois Waterfowl Surveys and Investigations W-43-R-67 Annual Progress Report FY2020
Illinois Waterfowl Surveys and Investigations W-43-R-67 Annual Progress Report FY2020
Yetter, Aaron P.; Fournier, Auriel M.V.; Gilbert, A.D.; Osborn, J.M.; Klimas, S.T.; Askren, R.J.; Malanchuk, L.J.; Beach C.R.; Lancaster, Joseph D.; Jacques, C.N.; Hagy, H.M.; and Ward, M.P.

Thumbnail for Upper Rock River area assessment
Upper Rock River area assessment
Illinois Department of Natural Resources, Office of Scientific Research; Illinois Department of Natural Resources, Illinois State Water Survey

Thumbnail for Upper Sangamon River area assessment
Upper Sangamon River area assessment
Submitter: Steven Mccauley

Thumbnail for Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.