Geological Survey - University of Illinois Urbana-Champaign

The Flint River Subbasin is a somewhat triangular shaped area bordered on the east by the Mississippi River, the Skunk River. Basin on the southwest, and the ...

Autres Cours:

Indian Villages of the Illinois Country: Historic Tribes

Interior Places

Locator Map

()L.I () - National Geologic Map Database

Physical Features and Geologic History of Des Moines Valley

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