University of Illinois Urbana-Champaign

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Showing 931–960 of 1,459 items
Thumbnail for Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Fox River area assessment
Fox River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Illinois Technograph v. 078 (1962-1963)
Illinois Technograph v. 078 (1962-1963)
Submitter: Timothy Donohue

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.