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Illinois Geologic Quadrangle Map - CobdenGeologyClick to view or right-click to download Author: W. John Nelson Description: 48" x 33" single map sheet; includes map, legend, descriptive text, descriptive stratigraphic column, inset map and cross sections (3) Year Delivered: 1996 File size: 7.2 mb PDF Hardcopy: $10.50 Ordering information for Illinois State Geological Survey Publications.
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| Updated 2/27/2007 SLD | |||||