Hergesheimer, EdwinSmith, Robert Pearsall, 1827-1898United States. War Department. Corps of EngineersRelief shown by hachures. Oriented with North to upper left-hand corner. "Compiled under the direction of Lieut. Col. J.N. Macomb A.D.C. Chf. Topl. Engr. for the use of Maj. Gen. Geo. B. McClellan commanding Army of Potomac." "Drawn from R.P. Smith's map by E. Hergesheimer. Photographs by G. Mathiot & D. Hinkle by permission of Prof. A.D. Bache Supt. U.S. Coast Survey." 1 map: mounted on linen; 36 x 35 cmJPEGf395de7b-7a57-47b3-8613-9e603650fbaaengPublicLoudon County Virginia by E. Hergesheimer.MapsVirginia--Loudoun CountyVirginia1861University of Michigan