Wildfires across California propel ash and smoke above Travis AFB
U.S. Airmen assigned to the 860th Aircraft Maintenance Squadron conduct routine maintenance to the wing of a C-17 Globemaster III at Travis Air Force Base, California, Sept. 9, 2020. Wildfires across California propelled ash and smoke into the troposphere, the lowest region of the atmosphere, impacting the air quality and sky color. (U.S. Air Force photo by Nicholas Pilch)

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Photo by: Nicholas Pilch 60th AMW/PA |  VIRIN: 200909-F-UO290-1014.JPG