Maintaining the Depths
Staff Sgt. Sixto Trevino, 9th Civil Engineer Squadron water and fuels maintenance, waits in the underground tank for the safety cable to be lowered down to him before making the climb back to the surface at Beale Air Force Base, California, April 27, 2017. Safety cables are attached to the wearer's harness in the event that they cannot make the climb on their own due to safety issues. (U.S. Air Force photo by Airman 1st Class Justin Parsons/Released)

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Photo by: Airman 1st Class Justin Parsons  |  VIRIN: 170427-F-GZ700-964.JPG