• Map
    Civil War defenses of Washington : Maryland, Virginia, Washington D.C.
    Circle of forts, city of trees
    Shows existing and former Civil War forts/batteries and present-day roadways in the Washington D.C. metropolitan area. "*GPO: 2010--641-603." Relief shown by shading. Title from panel. Includes text and col. ill. Text, aerial view of earthen "Fort Foote", and. ill. (some col.) on verso. Available also through the Library of Congress Web site as a raster image. DCP
    • Contributor: United States. National Park Service
    • Date: 2010
  • Map
    Topographical map of Washington, D.C., and vicinity. Showing the Union forts and defences built 1861-3. Detail from a printed map of the Potomac River region of Maryland and Virginia, and including Washington, D.C., which Sneden has annotated to show the locations of Union forts and picket lines.
    • Contributor: Sneden, Robert Knox
  • Map
    Map of n. eastern Virginia and vicinity of Washington Shows forts and batteries in the District of Columbia and immediate vicinity. Relief shown by hachures. Depths shown by soundings. At head of title: Surveys for military defences. "Additions & corrections for Rappahannock and Rapid Ann Rivers and their vicinity ..." added to data used in compilation. Mounted on cloth backing. Includes "Data used in compilation," table of "Elevations above tide water," and "Geological ...
    • Contributor: United States. Corps of Topographical Engineers - McDowell, Irvin - Schedler, J. (Joseph)
    • Date: 1862