University of Illinois Urbana-Champaign

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Showing 31–60 of 16,037 items
Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator Quadrangles - Plates
Geology and mineral resources of the Marseilles, Ottawa, and Streator Quadrangles - Plates
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry

Thumbnail for Map showing geologic materials in the vicinity of the lower Wabash Valley Illinois, Indiana, and Kentucky
Map showing geologic materials in the vicinity of the lower Wabash Valley Illinois, Indiana, and Kentucky
Hester, James C.; Krumm, Robert J.; Keith, Brian D.; Rupp, Robin F.; Cordiviola, Steve