University of Illinois Urbana-Champaign

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Showing 1801–1830 of 2,195 items
Thumbnail for Vermilion River (Illinois River Basin) area assessment
Vermilion River (Illinois River Basin) area assessment
Illinois Deptartment of Natural Resources

Thumbnail for Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

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.