University of Illinois Urbana-Champaign

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Showing 91–120 of 2,966 items
Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Depositional history of the Pennsylvanian rocks in Illinois
Depositional history of the Pennsylvanian rocks in Illinois
Illinois State Geological Survey Coal Section; Jacobson, Russell J.

Thumbnail for Agstone used in Illinois in 1947
Agstone used in Illinois in 1947
Voskuil, Walter H.; King, Ethel M.

Thumbnail for Structural trends in the Illinois Basin
Structural trends in the Illinois Basin
Cohee, George Vincent; Carter, Charles William

Thumbnail for Road Materials Resources of Brown County, Illinois
Road Materials Resources of Brown County, Illinois
Apfel, E.T.; Holmes, C.D.; Root, T.B.