Location
Latitude: |
46-38-15.1850N (46.637551) |
Longitude: |
121-07-26.3240W (-121.123979) |
Elevation: |
2964.0 feet MSL (903 m MSL) |
Magnetic Variation: |
14.6 E (as of December 2025 from WMM2020 model) |
Time Zone: |
UTC -8.0 (Standard Time) UTC -7.0 (Daylight Savings Time) |
From City: |
02 N.M. S of Rimrock, Washington |
Found On: |
Seattle Chart |
FAA Region: |
ANM |
Contacts
Manager: |
Publicly owned: |
| JOHN WILSON PO BOX 47312 OLYMPIA, WA 98504-7264 360-618-2477 |
WSDOT AVIATION DIVISION PO BOX 47312 OLYMPIA, WA 98504-7264 800-552-0666 |
Operations
Airport Status: |
Operational |
Facility Use: |
Public |
Type: |
Airport |
Activation Date: |
07/1951 |
Control tower: |
No |
Attendance (Months/Days/Hours): |
Months/Days/Hours Unattended |
Boundary ARTCC: |
ZSE (Seattle) |
Responsible ARTCC: |
ZSE (Seattle) |
Segmented Circle Indicator: |
No |
Traffic Pattern Altitude (MSL): |
3964 feet (1208 m) |
NOTAMs Facility: |
SEA |
NOTAM-D Service: |
Yes |
International Airport of Entry: |
No |
Customs Landing Rights: |
No |
Military Landing Rights: |
Yes |
Civil/Military Joint Use: |
No |
Based Aircraft
Annual Operations (as of )
Communications
| CTAF: | 122.900 |
Fixed Based Operators (FBOs) & Fuel
(Click on a business for detail)
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Please help us keep this information up to date. This is a FREE SERVICE just like everything else on Airport Guide! If you see that a business needs to be added, modified, or deleted please fill out our .
Area Code: 206 |
| Business Name | Frequency | Phone | Fuel Grade |
|---|
Flight Service Stations
| Primary | Alternate | |
| FSS on Field: | N | |
| FSS Name (ID): | Seattle(SEA) | |
| Frequency: | ||
| Toll Free Phone: | 1-800-WX-BRIEF |
Instrument Procedures / Charts
Terminal Procedures are only available for airports in several countries with more being added all the time. If you are looking for a specific country's charts, please send an email to support(at)airportguide.com stating the country name. This will be used to prioritize the implementation.
Navigation Aids (Navaids) near 4S6
| Dist (NM) | ID | Morse Code | Name | Type | Freq | True Hdg | Mag Hdg |
|---|---|---|---|---|---|---|---|
| 28.3 | YKM | _ . _ _ _ . _ _ _ | Yakima | VORTAC | 116.00 | 97 | 83 |
| 31.7 | YK | _ . _ _ _ . _ | Donny | NDB | 371 | 101 | 87 |
| 35.8 | ELN | . . _ . . _ . | Ellensburg | VOR-DME | 117.90 | 49 | 34 |
| 55.4 | LTJ | . _ . . _ . _ _ _ | Klickitat | VOR-DME | 112.30 | 178 | 164 |
| 59.0 | EAT | . . _ _ | Wenatchee | VOR-DME | 111.00 | 38 | 23 |
| 62.9 | LAC | . _ . . . _ _ . _ . | Lacomas | NDB | 328 | 291 | 276 |
| 63.3 | TCM | _ _ . _ . _ _ | Mcchord | TACAN | 109.60 | 299 | 284 |
| 68.1 | GRF | _ _ . . _ . . . _ . | Graye | NDB | 216 | 297 | 282 |
| 68.1 | RNT | . _ . _ . _ | Renton | NDB | 353 | 319 | 304 |
| 68.1 | SEA | . . . . . _ | Seattle | VORTAC | 116.80 | 315 | 300 |
| 68.7 | SEA | . . . . . _ | Seattle-Tacoma | VOT | 117.50 | 315 | 300 |
| 72.0 | BFI | _ . . . . . _ . . . | Seattle | VOT | 108.60 | 318 | 303 |
| 72.2 | HPK | . . . . . _ _ . _ . _ | Parkk | NDB | 281 | 318 | 303 |
| 75.7 | OLM | _ _ _ . _ . . _ _ | Olympia | VORTAC | 113.40 | 285 | 270 |
| 78.9 | BF | _ . . . . . _ . | Nolla | NDB | 362 | 319 | 304 |
| 79.5 | LSO | . _ . . . . . _ _ _ | Kelso | NDB | 256 | 249 | 234 |
| 81.0 | BTG | _ . . . _ _ _ . | Battle Ground | VORTAC | 116.60 | 229 | 214 |
| 81.1 | MW | _ _ . _ _ | Pelly | NDB | 408 | 68 | 54 |
| 81.7 | MWH | _ _ . _ _ . . . . | Moses Lake | VOR-DME | 115.00 | 64 | 50 |
| 82.5 | EPH | . . _ _ . . . . . | Ephrata | VORTAC | 112.60 | 56 | 42 |
Nearby Airports with Fuel
Notices to Airmen (NOTAMS)
Remarks
| A110-2 | ARPT CLSD 1 OCT - 1 JUN EXC FOR APPROVED PUBLIC SAFETY/LAW ENFORCEMENT HELI OPS. BE ALERT, ARPT WINTER RECREATION ACTIVITIES DURING ARPT CLSD PERIODS. MIL, LOW APCH ONLY DURING CLSD PERIODS. |
| A110-6 | VEHICLES, PEDESTRIANS, AND ANIMALS ON AND INVOF ARPT. |
| A110-7 | GROUND RISES TO NORTHEAST. |
| A110-8 | CTN: MOUNTAINOUS TRRN SURROUNDS ARPT. |
| A33-02/20 | SFC GRASS & SMALL GRAVEL. |
| A52-02 | TREES ARE ON TOP OF MOUNTAIN/HILL. |
| A75 | PILOTS PROVD TIEDOWN CHAINS. |
| E111 | ESTABD PRIOR TO 15 MAY 1959. |
Runways
Runway Summary
| Runways: | 02/20 |
| Longest Runway: | 02/20 is 2509 ft (765 m) long |
| Runways with an Instrument Approach: |
4S6 Seaplane Base Runway Details
| Runway 02/20 | 2509 ft x 100 ft (765 m x 30 m) | |
| Surface: | Turf - Fair condition - No special surface treatment | |
Runway 02 |
Runway 20 |
|
Elevation: |
2964.0 | |
Latitude: |
46-38-06.0690N | 46-38-24.3000N |
Longitude: |
121-07-38.4920W | 121-07-14.1550W |
Glide Path Angle: |
0.0 degrees | 0.0 degrees |
Traffic Pattern: |
Left | Left |
Object at End: |
TREES | TREES |
Object Height: |
33 | 199 |
Distance from End: |
30 | 894 |
Object Centerline Offset: |
74 ft. right of centerline | 74 ft. right of centerline |
Services
Bottled Oxygen: |
None |
Bulk Oxygen: |
None |
Fuel Available: |
100LL, Jet A |
Landing Fees: |
No |
Other Services: |
Seaplane instruction and rental |
Ratings and Reviews
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Maps & Diagrams
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