Gray Army Air Field — Fort Lewis/Tacoma, United States

GRF designates Gray Army Airfield, a military installation located at Joint Base Lewis-McChord near Tacoma, Washington. The airfield primarily supports US Army aviation training and operations, including helicopter units and fixed-wing aircraft tied to the base's role as a major Pacific Northwest military hub. Unlike commercial airports, GRF handles no scheduled civilian passenger traffic, instead serving troop movements, cargo, medical evacuation training, and joint exercises involving Army and Air Force personnel stationed at the sprawling joint base. The facility's name honors a soldier from earlier military history, a common practice across Army airfields nationwide. Its proximity to Mount Rainier and the greater Tacoma-Seattle metropolitan area places GRF within one of the busiest military logistics corridors on the West Coast of the United States.