From Trinity to the Triad: the heritage of nuclear deterrence
A lavastone obelisk marks the site of Ground Zero for the first nuclear detonation, conducted July 16, 1945, on the White Sands Missile Range, New Mexico.
The Trinity Site is open to the public twice a year and personnel are on hand to educate visitors about the Manhattan Project and the beginning of the atomic age. (U. S. Air Force photo by Glenn S. Robertson)