Topography by W.S. Higginson , Ohio River by Corps of Engineers, U.S. Army , control by U.S. Geological Survey and Corps of Engineers, U.S. Army. Filing title: Corydon, Ind.--Ky. Edition of 1931. Polyconic projection. Harrison Co., Indiana--"Preliminary edition unsurveyed area." Relief shown by contours and spot heights. Contour interval 20 feet. Surveyed in 1928.
Imprint: [Washington, D.C.] : Dept. of the Interior, U.S. Geological Survey, [1931]
Dimensions: 45 x 42 cm or smaller