Keywords: TrinitySiteHistoricalMarkerHighwaySign.jpg en Trinity Site Historical Marker along US 380 Own Df206 20081101 OFFICIAL SCENIC HISTORIC MARKER The text of the sign reads TRINITY SITE The world's first atomic explosion occurred on July 16 1945 at the Trinity Site near the north end of the historic Jornada del Muerto It marked the beginning of the nuclear age and the culmination of the Manhattan Project The site now part of the White Sands Missile Range is closed to the public Trinity test site Historical markers in New Mexico |