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Illinois Geologic Quadrangle Map - GrantforkSurficial GeologyClick to view or right-click to download Author: David A. Grimley and Andrew C. Phillips Description: Two 36" x 30" map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive text with figures and table, and 2 cross sections Year Delivered: 2006 File size: 5.8 mb PDF Hardcopy: $15.00 Ordering information for Illinois State Geological Survey Publications.
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| Updated 2/27/2007 SLD | |||||