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Compton Quadrangle[an error occurred while processing this directive]
Please note: There is a very small piece of the Compton quad in LaSalle County. You may choose not to order this quad if LaSalle County is the area of interest. ![]() County: LaSalle, Lee Current Date: 1993 Photo Revision Date: Archive Date: 1982
Ordering information for Illinois State Geological Survey Publications.
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