Damage resulting from the 17 July 1944 ammunition explosion. This view looks north from barricade magazine BM-138. A badly damaged pier is in the background with the remains of a ship barely visible off its tip (right distance). Note crushed roofs on Southern Pacific railway cars in the foreground, damaged automobile at left, railway crane in center, Marine sentry at right armed with a Reising .45 caliber submachinegun, and magazine door (labeled BM-138/B) below the sentry. Photograph was taken by the Mare Island Navy Yard. U.S. Naval History and Heritage Command Photograph.