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Cheyenne Mountain Hosts 5K Tunnel Run and Open House
Runners take off from the starting line at the Cheyenne Mountain Air Force Station 5k Tunnel Run/Open House at Cheyenne Mountain Air Force Station, Colo., on May 26, 2016. Known as America’s Fortress, CMAFS celebrates its 50th year as an operational Air Force Station. (U.S. Air Force photo by Airman 1st Class Dennis Hoffman)

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Photo by: A1C Dennis Hoffman |  VIRIN: 160526-F-SV792-037.JPG

Peterson SFB Schriever SFBCheyenne Mountain SFSThule AB New Boston SFS Kaena Point SFS Maui