[Map of part of Montgomery County showing] Topographical Approaches on the Left Bank of the Potomac to Washington City from the North West. Surveyed by Parties of U. S. Coast Survey detailed by A. D. Bache, Supt., to act under the orders of Lieut. Col. J. N. Macomb, Chf. Topl. Engr. of the Army of the Potomac. Parts of Sept. & Oct. 1861. Field work by F. W. Dorr & C. Rockwell, U.S.C.S. ...Drawn by E. Hergesheimer. Photographs by G. Mathiot and D. Hinkle.
Summary
Maryland, the District of Columbia, and the Potomac River
Tags
Date
1860 - 1880
Source
The U.S. National Archives
Copyright info
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