Aerial Photo for Decatur, sheridan Region, location T 5-6 S., R 29-31 W., quadrangle Selden SW, project GS-VDZF. Date of photo 1975-11-10. Other info Flights 1,2,3,4 EW 1200. Range of sheets "1-169 to 173, 1-146 to 142, 1-123 to 127, 1-99 to 95". Number of sheets 20. Photo is located at T 5-6 S., R 29-31 W.