- United States. Mississippi River Commission
- University of Illinois at Urbana-Champaign, University Library
Projected from a trigonometrical survey made in 1876-77 and 1879-80. Sheets lith. by Julius Bien & Co and A. Hoen & Co. Includes notes, authorities, and index chart of adjoining sheets. Some sheets made under the direction of the Commission and Major C.B. Comstock, Corps of Engineers, Brvt. Brig. Gen., U.S.A. (Note: Several sheets are missing). 91 x 91 cm. or smaller; 1 map on 80 sheets. 1:20,000. The Commission (Washington, D.C.).
- Mississippi River Region