Trinity Site Open House

Trinity Site is open once a year to the public on the third Saturday in October.
Access to the site at the Stallion Gate off of Highway 380, and the event beginning at 8:00am with the gate closing at 2:00pm and the event ending at 3:30pm.

WSMR employees may not use their uprange access to enter through WSMR gates to get to the Trinity Site Open House. They must enter through the Stallion Gate during 8:00am and 2:00pm. Those attempting to use the WSMR Gates will be turned away by DES at the site.

Food and merchandise will be sold at the open house.

For more information, please call 575-635-7774

You can download a map of the Trinity site and an information brochure from the U.S. Army website linked on this page!