University of Illinois Urbana-Champaign

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Showing 331–360 of 3,545 items
Thumbnail for Sand and gravel resources of Mason County, Illinois
Sand and gravel resources of Mason County, Illinois
Labotka, Theodore C.; Hester, Norman C.

Thumbnail for Geology for planning in McHenry County
Geology for planning in McHenry County
Hackett, James Edward; McComas, Murray R.

Thumbnail for Public groundwater supplies in Boone county
Public groundwater supplies in Boone county
Woller, Dorothy M.; Sanderson, Ellis W.