Button up storage
19 of 23 from Photos: Inside Cheyenne Mountain, America's Fortress
The process of shutting down access to Cheyenne Mountain in the case of an attack or a drill is called "button up." This shed is one of many throughout the complex that are full of equipment that might be needed in case of such an event.
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June 27, 2009 6:00 AM PDT
Photo by: Daniel Terdiman/CNET