Mono Negative

Thule Air Base , Greenland : This composite pictures shows the impact points ( left ) debris and the burn trail approximately 500 yards long of the B-52 which crashed some seven miles south west of here 21 January 1968 , with four hydrogen bombs aboard . Air Force reconnaissance aircraft used photo flares on 23 January to illuminate the crash site . The debris trail is about 100 yards across at its widest point . 27 January 1968