Lost River
W12 · Mazama, WA · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:40 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:11 AM | 13:11Z |
| Sunrise | 06:43 AM | 13:43Z |
| Sunset | 07:09 PM | 02:09Z |
| Evening civil twilight Loggable night begins | 07:40 PM | 02:40Z |
Plan a flight from W12
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 11RIGHT trafficRP · charted
- Heading
- 110° mag · 131° true
- Dimensions
- 3,150 × 85 ft
- TPA
- 3,400 ft MSL (≈1,000 AGL) · standard
- Surface
- TURF-GRVL
- CTAF
- 122.9
Enter the right downwind (heading 290°) on the 45° at 3,400 ft MSL (≈1,000 AGL).
More details — RWY 11
- Approach obstacle
- Road, 15 ft, 0 ft from threshold, 0 ft B of centerline
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
| Runway | Length | Your margin |
|---|---|---|
| 11/29 | 3,150 ft |
Prefer one flat page? Full runway details for W12 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the W12 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Prefer one flat list? All W12 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- W12
- Coordinates
- 48.6496, -120.5020
- Elevation
- 2,415 ft MSL
- Magnetic variation
- 21E
- Sectional chart
- SEATTLE
- Airport use
- Public
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- SEATTLE · 122.5 · 1-800-WX-BRIEF
- NOTAM facility
- SEA
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1960/07
- Distance from city
- 5 NW
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management 2 contacts
Remarks FAA · 6 notes
General
- ARPT CLSD 1 NOV THRU 1 APR.
- WATCH FOR VEHICLES AND PEDESTRIANS ON RWY.
- ACCESS ROADS BOTH SIDE OF RWY IN PRIM SFC, VEHICLES CROSS RWY AT VARIOUS LOCATIONS, PRIMARILY AT RWY ENDS.
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
Runways
- MARKED (PAINTED) ON CONCRETE PAD.
Obstructions
- 11/29 +60 FT TREES IN PRIMARY SFC BOTH SIDES RY.
Nearby airports
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Also nearby: S52 Methow Valley State (20 NM) · 6S9 Stehekin State (20 NM) · 2S0 Twisp Municipal (24 NM) · WS87 Port Field (private) (26 NM) · WT37 Lockwood Dry Coulee (private) (39 NM)
About W12
Lost River (W12) is an airport in Mazama, WA, at 2,415 ft MSL. It has 1 runway, the longest 3,150 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for W12, refreshed from the Aviation Weather Center and FAA NASR.
Does W12 have a control tower?
No. Lost River is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at W12?
Lost River has 1 runway; the longest is 3,150 ft. See the Runways section for headings, surface, and lighting.
Where is W12?
Lost River is in Mazama, WA, at an elevation of 2,415 ft MSL. Coordinates: 48.6496, -120.5020.
More about W12
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open W12 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.