North American Aerospace Defense Command on Twitter: "Today the Cheyenne Mountain complex hosts the NORAD and @USNorthernCmd Alternate Command Center, in addition to several other units that support continental defense. #WeHaveTheWatch https://t.co ...
![Top secret NORAD base buried deep inside Cheyenne Mountain opens its 23-ton blast doors | Daily Mail Online Top secret NORAD base buried deep inside Cheyenne Mountain opens its 23-ton blast doors | Daily Mail Online](https://i.dailymail.co.uk/i/newpix/2018/05/12/16/4C2357AD00000578-0-image-a-95_1526139246466.jpg)