NTTR conducts emergency evacuation exercise
Employees at the Nevada Testing and Training Range building stand outside during a fire drill at Nellis AFB, Nev., Oct 4, 2018. The NTTR is the largest contiguous air and ground space available covering over 2.9 million acres of land. (U.S. Air Force photo by Airman 1st Class Bryan T. Guthrie)

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Photo by: Airman 1st Class Bryan Guthrie |  VIRIN: 181004-F-DN281-1064.JPG