University of Illinois Urbana-Champaign

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Showing 2551–2580 of 2,875 items
Thumbnail for Vermilion River (Illinois River Basin) area assessment
Vermilion River (Illinois River Basin) area assessment
Illinois Deptartment of Natural Resources

Thumbnail for Illinois classical studies. 18 (1993)
Illinois classical studies. 18 (1993)
Submitter: William Ingram

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