Ohio River between Mound City and Cairo

Surveyed by the party of F. H. Gerdes, Asst., assigned by A. D. Bache, Supdt., U.S. Coast Survey, to act . Gerdes, F. H. CREATED/PUBLISHED [S.l., 1864] NOTES Scale ca. 1:23,500. Indicates Fort Cairo, naval depot, and “harbor for powder barges” at Mound Ci