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Citation Info Geological Survey (U.S.). Crete quadrangle, Illinois-Indiana : 15 minute series (topographic). [JPEG2000]. Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.). Retrieved from https://gmutantt.gmu.edu/catalog/9dbe04e0-82d4-0134-1f08-0050569601ca-1