Scale ca. 1:17,600. LC Civil War Maps (2nd ed.), 258 Detailed map giving the morning and evening positions of the Union troops and the morning position of the Confederate troops, roads, contour lines, drainage, vegetation, houses, names of residents, and fences. Description derived from published bibliography. Available also through the Library of Congress web site as raster image.
United States. Army. Corps of Topographical Engineers
This very detailed map shows South Mountain, Turner's and Fox's gaps, and their relationships to Boonsboro and Frost town, Md. The locations of roads and buildings, many identified by owner, are included.