A.M.S. (Series) ; L751. "Edition 6-AMS (AFFE)". Transverse Mercator projection. "Prepared under the direction of the Engineer, HQ, AFFE, by the 64th Engineer Battalion (Base Topographic). Compiled in 1953 by photogrammetric (multiplex) methods.... Horizontal and vertical control established by the Korean Government General's Office, 1912-1913.... Planimetry and road classification field checked by Eighth Army Engineer Units, 1952."