University of Illinois Urbana-Champaign

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Showing 7831–7860 of 14,101 items
Thumbnail for Groundwater geology of the East St. Louis area, Illinois,
Groundwater geology of the East St. Louis area, Illinois,
Bergstrom, Robert Edward; Walker, Theodore R.

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