Land-surface elevation profile of a line within Fort Ethan Allen, Alexandria Co. [now Arlington], Va. Pen-and-ink (black) and lead pencil. At lower right in handwriting: Transferred from Office of Chf. Engr., Defenses of Washington, to Engr. Dept. Jan'y 1866. Imperfect: Fold-lined, rubber-stamped on verso. Drawn in 2 segments. LC Civil War maps (2nd ed.), 541.4 Transfer; Chief Engineers Office, War Dept. Includes 2 strait-line diagrams of measurement points along the profile. At upper edge: 211, L., sheet 17. Available also through the Library of Congress web site as raster image.
Dimmick; Hodasevich, R. A.; United States. War Department. Corps Of Engineers
1864
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