The Los Lunas Museum of Heritage and Arts is hosting an Early Morning Tour to Trinity Site.

The tour will begin from the Los Lunas Museum at 6:30 a.m.

Trinity site is where the first atomic bomb was tested at 5:29:45 a.m. Mountain War Time, July 16, 1945.  The 51, 500 acre area was declared a National Historic Landmark in 1975.  The Landmark includes base camp, ground zero, and the McDonald ranch house where the plutonium core to the bomb was assembled.  Visitors on the Trinity Site Tour usually see Ground Zero, "Jumbo" bomb casing, the McDonald House, one of the old instumentation bunkers, historical photos, a Fatman bomb casing, and part of the original crater left by the explosion revealing Trinitite.

The gate is open from 8 a.m. to 2 p.m. Trinity site closes at 3:30 p.m. Visitors are allowed to enter and exit through this gate unescorted during this special day on Saturday,October 5th.  This is the reason for leaving early from the museum as the lines do get long. 

There is no food and water or other services along the route, so come prepared.  However, souvenirs and food are available at the site for sale.  Cash only. There will be free cold bottled water and snacks on the bus for all going on the tour.

You must carry a picture ID on you while on the range.  Port-a-johns are available at the gate and at the Trinity site. Riders must not leave the road due to the presence of unexploded ordnance.  Photographs may be taken at the Trinity Site but not anywhere else along the route.  For more information or to sign up call (505)352-7720.


  • Occurs Saturday, October 5th, 2019 @ 6:30 am – 4:00 pm


Los Lunas Museum of Heritage and Arts

251 Main Street
Los Lunas, NM 87031


Rebecca Ortiz

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