366th Civil Engineer Squadron Dirtboys lay asphalt at Mountain Home Air Force Base, Idaho, June 14, 2017. The Dirtboys perform a variety of tasks, from laying asphalt to removing snow; they're responsible for the foundation of the base.(U.S. Air Force photo by Senior Airman Jessica H. Smith/Released)

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Photo by: Senior Airman Jessica H. Smith |  VIRIN: 170614-F-NC874-013.JPG