University of Illinois Urbana-Champaign

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Showing 1921–1950 of 2,210 items
Thumbnail for Ground-Water Resources of DuPage County, Illinois
Ground-Water Resources of DuPage County, Illinois
Zeizel, Arthur J.; Walton, William Clarence; Sasman, Robert T.; Prickett, Thomas A.

Thumbnail for Development and Expansion of the Natural Resource Data and Information Systems in
            Support of the Illinois Comprehensive Wildlife Conservation Plan
Development and Expansion of the Natural Resource Data and Information Systems in Support of the Illinois Comprehensive Wildlife Conservation Plan
Walk, Jeff; Phillips, Christopher A.; Hinz, Leon C., Jr.; Tweddale, Tari; Szafoni, Diane; Cordle, Liane; Holtrop, Ann Marie; Bol, Leslie; Brown, Patrick W.; Heske, Edward J.; Thomas, David; Epifanio, John M.

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