Map of the seat of war showing the battles of July 18th & 21st 1861

[Scale ca. 1:115,000].
LC Civil War Maps (2nd ed.), 563.1
Another issue.
Additional details added such as "Camp Sprague," "U.S. Hospital," "Soldier's Home," and other place names in the northern part of Washington, D.C.
Description derived from published bibliography.
Available also through the Library of Congress web site as raster image.