Lost River

Airport and flying

Lost River (W12) is a public, non-towered airport in Mazama, Okanogan County, Washington. Field elevation is 2,415 ft. Runway 11/29 is 3,150 by 85 ft, turf / gravel (fair condition). No fuel is listed on the field.

Nearest fuel: Methow Valley State (S52, Winthrop), 19.6 nm SE, 5,049 ft runway, 100LL, Jet A; Omak (OMK), 40.7 nm E, 4,667 ft runway, 100LL, Jet A; Okanogan Legion (S35, Okanogan), 41 nm SE, 2,533 ft runway, 100LL.

Major airports: Seattle-Tacoma International (SEA, Seattle), 102.3 nm SW, 11,901 ft runway, Jet A, Jet A-1; Spokane International (GEG, Spokane), 134 nm SE, 11,002 ft runway, 100, 100LL, Jet A.

Regional airports: Pangborn Meml (EAT, Wenatchee), 76 nm S, 7,000 ft runway, 100LL, Jet A; Bellingham International (BLI, Bellingham), 81.1 nm W, 6,700 ft runway, 100LL, Jet A; Seattle Paine Field International (PAE, Everett), 83.9 nm SW, 9,010 ft runway, 100LL, Jet A.

Nearby airports: Methow Valley State (S52, Winthrop), 19.6 nm SE, 5,049 ft runway, 100LL, Jet A; Stehekin State (6S9, Stehekin), 20.2 nm SW, 2,630 ft runway; Twisp Municipal (2S0, Twisp), 24.2 nm SE, 2,701 ft runway.

Official FAA airport record (W12) · FAA data effective 2026-10-29