Map of n. eastern Virginia and vicinity of Washington /

Relief shown by hachures. Depths shown by soundings.
Shows forts and batteries in the District of Columbia and immediate vicinity.
At head of title: Surveys for military defences.
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. [1] leaf ; 21 x 13 cm.
Mounted on cloth backing.
Includes "Data used in compilation," table of "Elevations above tide water," and "Geological profile of Loudoun County."
LC Civil War maps (2nd ed.) 466
Available also through the Library of Congress Web site as a raster image.
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