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Start Over Year 1917 Publisher State Geological Survey (Urbana, Ill.) Bounding Box -180 -89.81531 180 89.456192

1. Illinois, Coulterville quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1917. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1914.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot heights.;... Geological Survey (U.S.) and State Geological Survey (Urbana, Ill.).

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