University of Illinois Urbana-Champaign

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Showing 301–330 of 2,966 items
Thumbnail for Analyses of some Illinois rocks for gold
Analyses of some Illinois rocks for gold
Bradbury, J.C.; Hester, Norman C.; Ruch, R.R.

Thumbnail for Ground surface topography of McLean County, Illinois
Ground surface topography of McLean County, Illinois
McLean, Melisa M.; Riggs, Matthew H.

Thumbnail for Aquifer Sensitivity to Contamination, Kane County, Illinois
Aquifer Sensitivity to Contamination, Kane County, Illinois
Dey, William S.; Davis, Alec M.; Curry, B. Brandon