On July 16, 1945, deep in the deserts of New Mexico, Pandora’s Box was opened, and the Atomic Age was born.

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Trinity was code for the first detonation of “The Gadget”, a nuclear device, conceptually similar to its devastating cousin, “Fat Man.” Fat Man was infamously detonated over Nagasaki three weeks later, killing between 40,000 to 75,000 people in the immediate blast. Coupled with the earlier bombing of the city of Hiroshima, the world watched in unfolding horror as the fallout continued to take lives by way of radiation poisoning and cancer for decades. The attacks by the U.S on Japan during WWII were the first and last time that the catastrophic weapons were employed during a war.

While the U.S. military may not have had the foresight to grasp the awesome destruction that a 13-pound plutonium device could have on a population long term, they knew what it could do on initial contact, because Trinity gave them a good show. The 600 ft. wide fireball obliterated trees, turned sand into glass, and blew out windows 120 miles away.

Normally off-limits to civilians, the desolate scene of Trinity’s detonation is open to the public the first Saturday of April and/or October each year. At ground zero you can see green trinitite created by the bomb blast. Larger samples will be on display with a guide available to answer questions. Native trinitite can still be seen on the ground near the fenced borders. 

A shuttle bus is also available to take you two miles to the McDonald Ranch House where the bomb was assembled. Outside ground zero is “Jumbo,” the steel canister made for containing Trinity’s plutonium if the test had been a dud. Thankfully, someone thought better of using it as it would have rained molten radioactive steel down on the viewers of the successful test. Also, there is a mobile souvenir booth offering decent t-shirts, hats, and challenge coins.

The US Parks department is also present to provide Parks Passport Stamps and reading material about the Manhattan project. On the perimeter fences are pictures and information about Trinity. At the exact center of the area stands a black lava rock obelisk. Close by you can see what remains of one leg of the obliterated tower that The Gadget was detonated on. A plaque on the obelisk reads simply: “Trinity Site Where The World’s First Nuclear Device Was Exploded On July 16, 1945.”