"September 1862." Positive brown line print from original manuscript. Shows the area from Sharpsburg, Md. to Williamsport, Md. along the Potomac River. This item is in the Map Collection of the Library of Virginia; please contact the Library's Archives Research Services department for more information. Available also through the Library of Congress web site as raster image. Oct. 2002; source unknown (1969); Map Cataloging Team. Civil War Map Proj. no.: LVA00074. Conservation: Etherington Conservation Center, July 2002. Digital image available: 23 x 17.25 in. Map accession no. 2865 (1969). Previously filed as: 752 M6 1861-1865 1862(2).
United States. Topographical Bureau
1862
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/lva0000074/">https://www.loc.gov/item/lva0000074/</a>