Citation

Geological Survey (U.S.),cartographer.. Corydon quadrangle, Indiana--Kentucky :15 minute series (topographic) /mapped by the Geological Survey and the Army Map Service ; published for civil use by the Geological Survey.. [JPEG]. United States, Department of the Interior, Geological Survey. Retrieved from https://earthworks.stanford.edu/catalog/bda00722-bc03-43af-8e1c-8dee3c1a107a