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Dennison QuadrangleNOTE: This is not the actual topographic map! This image depicts the area covered by the topographic map and identifies the surrounding maps. If you have additional questions contact the Information Office or call 217-244-0933. ![]() County: Clark, Edgar Current Date: 1964 Photo Revision Date: 1972 Archive Date: 1964
Ordering information for Illinois State Geological Survey Publications.
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