The formal entryway into the Cheyenne Mountain facility features the insignia of four of the installation's tenants: NORAD, U.S. Northern Command, Air Force Space Command, and U.S. Strategic Command.Click here for the entire Road Trip 2009 package.
June 27, 2009 6:00 AM PDT
Photo by: Daniel Terdiman/CNET
| Caption by: Daniel Terdiman
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