The Cheyenne Mountain Operations Center (CMOC), typically referred to as the Cheyenne Mountain Complex or just Cheyenne Mountain, was a massive construction effort. Placed 1,500 feet underground ...

COLORADO SPRINGS, Colo. – Deep within the most fortified military installation in North America is a 15-building complex that protects the world from ongoing terror ...

The Cheyenne Mountain Complex, the alternate command center for the North American Aerospace Defense command (NORAD), has captured the imagination of storytellers since it was constructed in the ...

Fifty years have passed since the Cheyenne Mountain Complex went fully operational. Now, the US Air Force has given us a chance to look inside the legendary military installation made famous by ...

After $3.6 million and months worth of work, the underground Cheyenne Mountain Operations Center is ready for the monsoon. The main entrance to the secretive underground complex was blocked by up ...

which lies inside Cheyenne Mountain in El Paso County, has been slammed by flooding across Colorado's Front Range, The Gazette reports. The complex, said to be the most secure defense system ...