ROCKI 19-06, insider’s perspective: the foundation
U.S. Air Force Airman 1st Class Tyson Collier, 19th Civil Engineer Squadron engineer assistant, takes measurements to calculate the volume of a crater during a base-wide exercise at Little Rock Air Force Base, Arkansas, April 13, 2019. The size of the crater determines how quickly it can be repaired for aircraft to take off from the flight line. (U.S. Air Force photo by Airman 1st Class Kristine M. Gruwell)

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Photo by: Airman 1st Class Kristine M. Gruwell |  VIRIN: 190413-F-ID976-1064.JPG