University of Illinois Urbana-Champaign

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Showing 31–60 of 139 items
Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Digital Orthophoto Image Map, Villa Grove Quadrangle, Douglas County, Illinois
Digital Orthophoto Image Map, Villa Grove Quadrangle, Douglas County, Illinois
Luman, Donald E.; Hansel, Ardith K.; Map compilation, Abert, Curtis C.; Map compilation, Carrillo, Pamella K.

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Distribution of boghead algae in Illinois Basin coal beds
Distribution of boghead algae in Illinois Basin coal beds
Peppers, Russel Allen; Harvey, Richard David

Thumbnail for Museum of Natural History. v.2, no.2 (1992) - v.4, no.1 (1996)
Museum of Natural History. v.2, no.2 (1992) - v.4, no.1 (1996)
Museum of Natural History. College of Liberal Arts and Sciences. University of Illinois at Urbana-Champaign

Thumbnail for The origin of Weldon Springs
The origin of Weldon Springs
Panno, S.V.; Hackley, Keith C.

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey