Map of the Siege of Vicksburg, Miss., By the U. S. Forces Under the Command of Maj. Genl. U. S. Grant, U. S. Vls., Maj. F. E. Prime, Chief Engr. Surveyed and constructed under direction of Capt. C. B. Comstock, U.S. Engrs., and Lt. Col. J. H. Wilson, A. I. Genl. 1st Lt., Engrs....Drawn by Chs. Spangenberg, Asst. Engr.
![Map of the Shenandoah & Upper Potomac Including Portions of Virginia, [West Virginia], and Maryland. Compiled from Surveys made under the Direction of 1st Lieut. John R. Meigs, U. S. Engrs., Chief Engineer Dept. West Virginia, and from other reliable authorities, 1864.](https://cache.getarchive.net/Prod/thumb/cdn10/L3Bob3RvLzE4NjQvMDEvMDEvbWFwLW9mLXRoZS1zaGVuYW5kb2FoLWFuZC11cHBlci1wb3RvbWFjLWluY2x1ZGluZy1wb3J0aW9ucy1vZi12aXJnaW5pYS13ZXN0LTY4ODQ1Yi02NDAuanBn/40/58/webp "Map of the Shenandoah & Upper Potomac Including Portions of Virginia, [West Virginia], and Maryland. Compiled from Surveys made under the Direction of 1st Lieut. John R. Meigs, U. S. Engrs., Chief Engineer Dept. West Virginia, and from other reliable authorities, 1864.")
![Map of Loudon [sic], Jefferson, Berkeley, Frederick Counties, Va: compiled under the direction of Lieut. Col. J.N. Macomb A.D.C., Chf. Topl. Engr., for the use of Maj. Gen. Geo. B. McClellan](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NjIvMTIvMzEvbWFwLW9mLWxvdWRvbi1zaWMtamVmZmVyc29uLWJlcmtlbGV5LWZyZWRlcmljay1jb3VudGllcy12YS1jb21waWxlZC11bmRlci10aGUtNTJhOWI5LTY0MC5qcGc%3D/40/34/webp "Map of Loudon [sic], Jefferson, Berkeley, Frederick Counties, Va: compiled under the direction of Lieut. Col. J.N. Macomb A.D.C., Chf. Topl. Engr., for the use of Maj. Gen. Geo. B. McClellan")
