University of Illinois Urbana-Champaign

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Showing 6361–6390 of 8,738 items
Thumbnail for Big Muddy River area assessment
Big Muddy River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Yields of deep sandstone wells in Northern Illinois
Yields of deep sandstone wells in Northern Illinois
Walton, William Clarence; Csallany, Sandor