University of Illinois Urbana-Champaign

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Showing 1–30 of 407 items
Thumbnail for Ste. Genevieve fault zone, Missouri and Illinois
Ste. Genevieve fault zone, Missouri and Illinois
Nelson, W. John; Lumm, Donald K.; Schwalb, Howard R.

Thumbnail for Bedrock geology of Valmeyer quadrangle, Monroe County, Illinois
Bedrock geology of Valmeyer quadrangle, Monroe County, Illinois
Denny, F. Brett; Jacobson, Russell J.; Nelson, W. John