"Contour interval 100 feet." Relief shown by contours and spot heights. "Compiled in 1955 by photogrammetric methods and from United States quadrangles, 1:62,500, USGS, 1939-51. Planimetry revised from aerial photographs taken 1953-54. Photographs field annotated 1955." Includes magnetic declination information, sectionalized township diagram, and location diagram. "35098-A1-TF-250." Includes Ellis, Dewey, Blaine, Kingfisher, Roger Mills, Custer, Canadian, Beckham, Washita, Caddo, Grady, Harmon, Greer, and Kiowa counties.