These maps are 2 of the 5 sheets of the 1865 Army Corps of Engineers map that the National Archives calls Record Group 77, Records of the Office of Chief of Engineers, Headquarters Map File, T 84 ½ - 1, sheets 1 & 2.
Sheet #1: bounded on the west by the Tennessee River, north by the Kentucky line, south almost to Linden, east almost to Clarksville (incl. Ringgold) and including Centerville; includes the legend for the entire map
Sheet 1 (JPG format, size 12Mb)
Sheet #2: bounded on the west by Clarksville (Ringgold)/Charlotte/Centerville, north by the Kentucky line, south to Columbia, east to Cottontown/Smyrna
Sheet 2 (JPG format, size 12Mb)
Part of Sheet 1, showing Stewart County only (JPG format, size 6Mb)