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DeKalb 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: DeKalb Current Date: 1971 Photo Revision Date: 1980 Archive Date: 1971 ![]()
Ordering information for Illinois State Geological Survey Publications.
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