University of Illinois Urbana-Champaign

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Showing 9931–9960 of 12,407 items
Thumbnail for Groundwater Simulation Modeling and Potentiometric Surface Mapping, McHenry County, Illinois
Groundwater Simulation Modeling and Potentiometric Surface Mapping, McHenry County, Illinois
Meyer, Scott C.; Roadcap, George C.; Lin, Yu-Feng; Abrams, Daniel B.

Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry