Old map of Cairo, Illinois, Mound City, Ohio River, United States. Created by A. D. (Alexander Dallas) Bache, F. H. Gerdes in 1864. * Depths shown by soundings in feet. * From its Report of the Superintendent of the Coast Survey, showing the progress of the survey during the year 1864 (Washington, Government Printeing Office, 1866). Map 31. * Indicates Fort Cairo, naval depot, and "harbor for powder barges" at Mound City, soundings in feet, roads and streets, and vegetation. * Upper left margin: No. 31. * Civil War Map * Description derived from published bibliography.