University of Illinois Urbana-Champaign

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Showing 601–630 of 1,461 items
Thumbnail for Glacial tills of Northwestern Illinois
Glacial tills of Northwestern Illinois
Illinois State Geological Survey; Frye, John Chapman

Thumbnail for Products in Lambda-Rings
Products in Lambda-Rings
Brennan, Joseph Patrick

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

Thumbnail for Surface Water Supply Availability from Intrastate Streams and Rivers in Illinois
Surface Water Supply Availability from Intrastate Streams and Rivers in Illinois
Broeren, Sally McConkey; Singh, Krishan P.; Esseks, Elizabeth