University of Illinois Urbana-Champaign

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Showing 361–390 of 520 items
Thumbnail for Mines in the Illinois portion of the Illinois-Kentucky Fluorspar District
Mines in the Illinois portion of the Illinois-Kentucky Fluorspar District
Denny, F. Brett; Nelson, W. John; Breeden, Jeremy R.; Lillie, Ross C.

Thumbnail for Geology of the fluorspar deposits of Illinois
Geology of the fluorspar deposits of Illinois
Weller, James Marvin; Grogan, Robert Mann; Tippie, Frank Emerson, joint author

Thumbnail for Wetland resources of Illinois : an analysis and atlas
Wetland resources of Illinois : an analysis and atlas
Suloway, Liane B.; Hubbell, Marvin E.