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Start Over Year 1915 Publisher Bureau of Geology and Mines (Rolla, Mo.) Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. Missouri-Illinois, Crystal City quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1915. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1911 and 1913.";"Surveyed in cooperation with the States of Missouri and Illinois.";Relief shown by contours... Bureau of Geology and Mines (Rolla, Mo.), Geological Survey (U.S.), and Geological Survey Division (Urbana, Ill.).

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