Be Safe Around Abandoned Mines on the Colorado Plateau

Stay out and stay alive, reclamation expert advises

Office of Legacy Management

November 20, 2025
minute read time
Abandoned uranium mine
Abandoned uranium mine

The Colorado Plateau encompasses the Four Corners of the United States and is beloved for its rugged, isolated landscapes. A brief drive or hike can remove you from the business of the modern world and provide a glimpse of the past.

Abandoned mines, left by mineral extraction and exploration of all types, are scattered across the plateau, and while these places are intriguing, they are hazardous to visitors. Few understand this better than Office of Legacy Management field teams working on the Defense Related Uranium Mine (DRUM) program, which assesses the condition of mines that were once pivotal to the Atomic Energy Commission during the Cold War. These assessments will assist in determining the proper course of action should mines pose any risks to human health and the environment.

“DRUM's assessment of a mine represents a snapshot in time, and mine conditions can change rapidly,” said Uranium Related Programs Manager Joel Doebele. “Mines that were previously reclaimed or that showed no physical safety hazards — unprotected open entries, subsidence features, or highwalls — last year or even last week could have new hazards today. It is best to avoid abandoned mines altogether, thereby avoiding the risk.”

Among the many possible dangers in abandoned mines are wildlife, such as rattlesnakes and mountain lions, that have been known to take refuge in these now-quiet tunnels. Some mines have been left to the elements for decades and supports have rotted and rusted, making them perilous to explore in or around. Severe, even fatal injuries can occur from falling down shafts veiled by debris or darkness. Other unforeseen dangers lie in obscurity including toxic gases and even abandoned dynamite.

The Colorado Plateau has a varied history of mining, from gold and silver to uranium. Appreciate historic structures of our past from a safe distance and visit the Atomic Legacy Cabin to learn about the ties between uranium mining on the Colorado Plateau, the Manhattan Project, and the Cold War. 

While our area is famous for its beauty and remarkable hikes, remember to stay out and stay alive if you come across an old mine. Just because there is no sign doesn’t mean there is no danger.

Stay up to date with our upcoming events by following the Office of Legacy Management on Facebook and LinkedIn or by checking out the Atomic Legacy Cabin’s website.

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