University of Illinois Urbana-Champaign

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Showing 2311–2340 of 2,551 items
Thumbnail for Fox River area assessment
Fox River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Petroleum industry in Illinois in 1955.
Petroleum industry in Illinois in 1955.
Bell, Alfred Hannam; Kline, Virginia Harriet; Witherspoon Jr., Paul Adams; Pierre, Donald A.

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.

Thumbnail for Chicago River/Lake Shore area assessment
Chicago River/Lake Shore area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis