1959. Geological Survey (U.S.),cartographer. Relief shown by contours and spot heights.; Shows portions of Harrison County, Indiana, and Meade County, Kentucky.; Compiled in 1956 from 1:25,000... United States, Department of the Interior, Geological Survey.
1963. Relief shown by contours and spot heights. Depths by contours and soundings.; Contour interval 5 and 10 feet.; Red tint indicates areas in which on... U.S. Geological Survey.
1970. Kingsbury, Robert C. and Hollingsworth, John M. Relief shown by contours and gradient tints. Detached from: Kingsbury, Robert C. Atlas of Indiana, page 12. Scale approximately 1:2,000,000. Department of Geography, Indiana University.
1973. Geological Survey (U.S.). Relief shown by contours and spot heights.; Compiled in 1970.; Includes population key.; Source data U.S Dept. of the interior - Geological Survey ... U.S. Geological Survey.