Map of the Ohio River, reduced from the following surveys: 1837-8, Lieut. Sanders, U.S. Eng'rs, Pittsburgh to Letart, 234 miles, 1844, C.A. Fuller, U.S. civ. eng'r, Letart to Clipper Mills, 37 miles, 1867-68, W.M. Roberts, U.S. civ. eng'r, Clipper Mills to Cairo, 696 miles, with additions & corrections from later surveys Full Details
Georeferenced: false