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Map of Salem Neck Showing Defenses

[Plan of Fort Sumner, Montgomery County, composed of Redoubts Cross, Davis, and Kirby and also showing nearby rifle pits and Batteries Alexander and Benson, part of the defenses of Washington, D. C. ]

[Sketch of the action at Roanoke Island, N. C., February 8, 1862, showing Confederate defenses, positions of Federal and Confederate gunboats and Federal transports, the landing place, and the site of the battleground.]

[Map of Cumberland Gap and surrounding area in Tennessee, Virginia, and Kentucky showing defenses, military installations, and roads.]

Sketch of the Defenses of Pittsburg [sic] made by order of Captain Craighill, Corps of Engrs., USA, July 20th, 1863 By B. W. O'Grady

Sketch showing the triangulation of the principal Defenses of the District of Columbia executed under the general direction of Col. J. N. Macomb, U. S. Topl. Engrs., by Charles A. Schott, Asst., U. S. Coast Survey, January to May 1863.

Map of Charleston, South Carolina Showing Defenses

Topographical Map of the Approaches and Defenses of Knoxville, E. Tennessee, Shewing the Positions Occupied by the United States & Rebel Forces during the Siege. Surveyed by direction of Capt. O. M. Poe, Chf. Engr., Dept. of the Ohio, during Dec., Jan., and Feb., 1863-4, by [signed] Cleveland Rockwell, Sub. Asst., U.S. Coast Survey, [and] R. H. Talcott, Aid ... Drawn by C. Rockwell.

Map of Jacksonville and vicinity, Florida, [showing defenses]. Surveyed April 1864. [Signed] Wm. H. Dennis, U. S. Coast Survey.

Map of Jefferson City, Mo., and Vicinity, showing the line of defenses. Wm. Hoelcke, Captn. & Addl. A. de. C., U.S.A., Chief Engl., Departt. of the Mo.