University of Illinois Urbana-Champaign

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Showing 841–870 of 1,022 items
Thumbnail for Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Groundwater availability in Champaign County
Groundwater availability in Champaign County
Sanderson, Ellis W.; Zewde, Elias

Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources