Map of the vicinity of Hagerstown, Funkstown, Williamsport, and Falling Waters, Maryland
Scale ca. 1:21,500. LC Civil War Maps (2nd ed.), 245 "United States forces are shown in blue [and] Confederate forces are shown in red." Indicates houses, names of residents, stone fences, roads, vegetation, drainage, and relief by hachures. Description derived from published bibliography. Available also through the Library of Congress web site as raster image.
United States. Army. Corps of Engineers