Aerial Photo for Graham, Norton, Phillips, Trego, Rooks Region, location T 5-11 S; R 20-21 W, project AZA, 33-15. Date of photo 1949-07-27. Other info Elevation = 20000. Range of sheets 3F-178 to 3F-142. Number of sheets 37. Photo is located at T 5-11 S; R 20-21 W