University of Illinois Urbana-Champaign

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Showing 6121–6150 of 6,189 items
Thumbnail for Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Illinois magazine. 11 (1920 - 1921)
Illinois magazine. 11 (1920 - 1921)
Submitter: William Ingram

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 Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.