Accompanied by sheet: Presented to Brig. Genl. S. Williams, A.A. Genl. Hd. Qrs. Army, by order of Maj. Genl. McClellan, Comd. in Chf. U.S.A. [signed] A.W. Whipple, Maj. T.E.  leaf ; 21 x 13 cm. At head of title: Surveys for military defences. Includes Data used in compilation, table of Elevations above tide water, and Geological profile of Loudoun County. Mounted on cloth backing. Relief shown by hachures. Depths shown by soundings. Shows forts and batteries in the District of Columbia and immediate vicinity. Similar to no. 1005, Swem, C.E. Maps relating to Virginia. This item is in the Map Collection of the Library of Virginia; please contact the Library's Archives Research Services department for more information. LC Civil War maps (2nd ed.), 466 Available also through the Library of Congress Web site as a raster image.
Territorio raffigurato: United States; Washington D.C.; Washington Metropolitan Area; Virginia; Washington Metropolitan Area; Washington; District Of Columbia; Virginia.