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LOST RIVER - Airport Diagram
LiveATC.net: Live Air Traffic - From Their Headsets to You

W12
Local W12
LOST RIVER
PublicPUB

5 miles NW of MAZAMA, WA, US
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Status
Operational
Coordinates
48° 38' 59"N 120° 30' 07"W
Elevation
2415' MSL
Pattern Alt
3415' MSL
Mag Variation
15°E
Declination
21°E
Fuel
None Listed
FSS
SEATTLE (SEA)
Sectional
SEATTLE
ARTCC
SEATTLE (ZSE)
Data Effective
5/14/26-6/11/26
KS52 (19nm) VFR
11:15 PM PDT  
Clear
10sm
58°F
41°F
30.03"Hg
300° 3kts
AO2 T01420051
METAR KS52 040615Z AUTO 30003KT 10SM CLR 14/05 A3003 RMK AO2 T01420051
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Common

CTAF 122.9

FAA A/FD Pages

Terminal Area Forecast

CYYF (60nm)
Wed, 6/3 5:40 PM PDT
Wed, 6/3 6:00 PM PDT - Thu, 6/4 6:00 AM PDT
VFR
Temporary 6:00 PM PDT - 8:00 PM PDT
Light Showers and Rain and Thunderstorm in vicinity
Overcast 10,000'
Broken 6,000'
6sm
Calm
VFR
6:00 PM PDT - 8:00 PM PDT
Overcast 10,000'
Broken 7,000'
6sm
360° 8kts
VFR
Temporary 8:00 PM PDT - 11:00 PM PDT
Light Showers and Rain
No Clouds
6sm
Calm
VFR
8:00 PM PDT - 3:00 AM PDT
Broken 7,000'
6sm
VRB° 3kts
VFR
3:00 AM PDT - 6:00 AM PDT
Few 7,000'
6sm
VRB° 3kts
TAF CYYF 040040Z 0401/0413 36008KT P6SM BKN070 OVC100
   TEMPO 0401/0403 P6SM -SHRA VCTS BKN060CB OVC100
   FM040300 VRB03KT P6SM BKN070
   TEMPO 0403/0406 P6SM -SHRA
   FM041000 VRB03KT P6SM FEW070 RMK NXT FCST BY 040700Z
W12
EffectiveExpiresCategoryNOTAM
Domestic
6/6/26
1730Z
6/14/26
0230Z
!SEA 05/528 W12 AIRSPACE NUMEROUS GLD WI AN AREA DEFINED AS 490000N1212000W (32.8NM NE 3W5) TO 490000N1190000W (16.5NM E 0S7) TO 470000N1190000W (2.7NM NE 2S4) TO 470000N1212000W (8.2NM E 21W) TO POINT OF ORIGIN SFC-17999FT FREQ 123.3 DLY 1730-0230 2606061730-2606140230
No
UNATNDD
LOST RIVER ARPT ASSOC
16 MERCER ROAD
MAZAMA, WA 98833
Phone: (206) 321-2447
PATRICIA HEGLUND
2 MERCER ROAD
MAZAMA, WA 98833
Phone: 608-317-7850
SEATTLE FSS (SEA)
Toll Free: 1-800-WX-BRIEF
SEA
--
--
N/A
Yes
No
No
None
NOT a Landing Rights Airport
NOT an Airport of Entry
None
None
None
None
None

Runway 11/29

3150 ft. x 85 ft.
TURF GRVL  
Fair 
NONE 
 
 
-- 
-- 
-- 
-- 
  Runway 11 Runway 29
True Heading Not ListedNot Listed
Traffic Pattern Right
Markings NONE
Markings Condition
Latitude N/A N/A
Longitude N/A N/A
Elevation -- --
Threshold Crossing Height -- --
Visual Glide Path Angle -- --
Visual Slope Indicator -- --
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-1ARPT CLSD 1 NOV THRU 1 APR.
A110-2WATCH FOR VEHICLES AND PEDESTRIANS ON RWY.
A110-3ACCESS ROADS BOTH SIDE OF RWY IN PRIM SFC, VEHICLES CROSS RWY AT VARIOUS LOCATIONS, PRIMARILY AT RWY ENDS.
A110-4FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
A42-11_MARKMARKED (PAINTED) ON CONCRETE PAD.
A57-1111/29 +60 FT TREES IN PRIMARY SFC BOTH SIDES RY.
E111FILED FOR RECORD KEEPING PURPOSES ONLY.
LOST RIVER (IATA: W12) is a public airport located in MAZAMA, WA, US.