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Atlas Home | Topography | Faulting and the Des Plaines Disturbance | Quaternary Deposits | Silurian Strata | Maquoketa Group | Galena and Platteville Groups | Ancell Group | Ironton-Galesville Formation |
Eau Claire Formation | Mt. Simon Formation | Maps - PDF format


Three-dimensional Representation of the Thickness of the Galena and Platteville Groups in Cook County, Illinois

large 3D image of Galena-Platteville interval in Cook County, Illinois

 




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ILLINOIS STATE GEOLOGICAL SURVEY
INSTITUTE OF NATURAL RESOURCE SUSTAINABILITY     |    UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN

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Updated 2/5/2007 SLD