University of Illinois Urbana-Champaign

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Showing 631–642 of 642 items
Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources

Thumbnail for Illinois classical studies. 7 (1982)
Illinois classical studies. 7 (1982)
Submitter: William Ingram

Thumbnail for Annual newsletter / 1980-85
Annual newsletter / 1980-85
University of Illinois at Urbana-Champaign. Deptartment of Geology

Thumbnail for Big Rivers area assessment
Big Rivers area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division