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Start Over Year 1914 Place Illinois Publisher State Geological Survey (Urbana, Ill.)

1. Illinois, Centralia quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1914. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1908 and 1912.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot ... Geological Survey (U.S.) and State Geological Survey (Urbana, Ill.).

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