Merrill, W. E. (William Emery), 1837-1891; Moser, C.Relief shown by hachures. Publication date of Sept. 14, 1881 supplied by U.S. Army, Corps of Engineers. 52 maps on 38 sheets. Maps made under the direction of Major W.E. Merrill, Corps of Engineers, by C. Moser.Imprint: [Washington, D.C. , 1881]Dimensions: on sheets 49 x 73 cmJPEGengUnited States. Army. Corps of EngineersPublicNavigationRiversMap 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 surveysMapsOhio River1881Indiana University