The Pentagon reactivated its underground redoubt as backup homeland defense headquarters. The North American Aerospace Defense Command complex in Colorado was designed to ride out a nuclear attack.

Deep beneath the Colorado Rockies lies a top-secret fortress designed to keep America's military and political leaders alive if the unthinkable happens. The Cheyenne Mountain Complex, once the stuff ...

Getting your Trinity Audio player ready... The U.S. military’s mountain bunker along Colorado’s Front Range, built during the Cold War to survive a Soviet nuclear attack, now must withstand scrutiny ...

Public land is closer to expanding around the Pikes Peak region’s second most famous mountain. Colorado Springs’ City Council on Tuesday unanimously approved the Trails, Open Space and Parks (TOPS) ...