May 29, 2023

What's really hiding under Cheyenne Mountain in Colorado?

There are so many rumors swirling around about what’s under Colorado.

Watch the 9NEWS special “Under Colorado” for more underground secrets, Saturday, Oct. 22 at 6:30PM on Channel 20.

Many residents have heard about a secret military city under Denver International Airport, even a government project on aliens down there. Coloradans have heard about what it’s like inside the most famous underground military base in the world: Cheyenne Mountain.

Just south of Colorado Springs is one of the most famous military bases in the world, but you can’t see it. It sits one mile inside of the granite Cheyenne Mountain, 2,000 feet down from the surface.

Under Colorado: What’s inside Cheyenne Mountain

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