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.
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1906. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1905.";"Surveyed in cooperation with the States of Illinois and Kentucky.";Relief shown by contours and spot... Geological Survey (Lexington, Ky.), Geological Survey (U.S.), and Geological Survey Division (Urbana, Ill.).