Yellowstone Seaplane Base

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Location

Latitude: 
 44-49-48.0000N (44.83)
Longitude: 
 111-17-15.0000W (-111.2875)
Elevation: 
 6534.0 feet MSL (1992 m MSL)
Magnetic Variation: 
 11.2 E (as of December 2025 from WMM2020 model)
Time Zone: 
 UTC -7.0 (Standard Time)
UTC -6.0 (Daylight Savings Time)
From City: 
 13 N.M. NW of West Yellowstone, Montana
Found On: 
 Great Falls Chart
FAA Region: 
 ANM

Contacts

Manager: 
Privately owned: 
LAUREN DEWIT
PO BOX 892
MANHATTAN, MT 59471
406-208-3004		 LAUREN DEWIT
PO BOX 892
MANHATTAN, MT 59471
406-208-3004

Operations

Airport Status: 
 Operational
Facility Use: 
 Public
Type: 
 Seaplane Base
Activation Date: 
 01/2019
Control tower: 
 No
Boundary ARTCC: 
 ZLC (Salt Lake City)
Responsible ARTCC: 
 ZLC (Salt Lake City)
Traffic Pattern Altitude (MSL): 
 7534 feet (2296 m)

Based Aircraft

Annual Operations (as of )

Communications

CTAF:  123.000
Unicom:  123.000

       

    Fixed Based Operators (FBOs) & Fuel

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    Flight Service Stations

    Primary Alternate
    FSS on Field: 
    FSS Name (ID):  Boise(BOI)
    Frequency: 
    Toll Free Phone:  1-800-WX-BRIEF

    Instrument Procedures / Charts

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    Navigation Aids (Navaids) near 8M3

    Navigational Aid (NAVAID) distances from the airport are listed in Nautical Miles (NM).

    Nearby Airports with Fuel

    Dist (NM) Name (Airport IDs) True Hdg Mag Hdg Fuel Grade
    11.2 Yellowstone Airport
    (WYS KWYS WYS)    		 139 128 100LL, Jet A-1+
    26.5 Gardiner Airport
    (29S)    		 59 48 100ll Jet A
    30.8 Ennis Big Sky Airport
    (KEKS EKS)    		 330 319 100LL, Jet A-1, Jet A-1+
    55.5 Stanford Field Airport
    (U12)    		 198 187 100LL, Jet A
    57.1 Bozeman Yellowstone International Airport
    (BZN KBZN BZN)    		 5 354 100, 100LL, Jet A
    59.4 Dillon Airport
    (DLN KDLN DLN)    		 295 283 100LL, Jet A, Jet A+
    63.1 Mission Field Airport
    (LVM KLVM LVM)    		 33 22 100LL, Jet A
    63.8 Rexburg-Madison County Airport
    (KRXE RXE)    		 200 189 100LL, Jet A
    64.0 Three Forks Airport
    (9S5)    		 349 338 100LL
    65.6 Driggs/Reed Meml Airport
    (KDIJ DIJ)    		 172 161 100LL, Jet A+
    76.4 Rigby Airport
    (U56)    		 201 190 100LL
    77.1 Jackson Hole Airport
    (JAC KJAC JAC)    		 161 150 100LL, Jet A
    80.5 Big Timber At Howard Field Airport
    (6S0)    		 42 31 100LL, Jet A
    84.6 Bert Mooney Airport
    (BTM KBTM BTM)    		 323 311 100, 100LL, Jet A
    85.9 Idaho Falls Regional Airport
    (IDA KIDA IDA)    		 203 192 100LL, Jet A-1
    88.7 Red Lodge Airport
    (KRED RED)    		 75 65 100LL
    98.4 Yellowstone Regional Airport
    (COD KCOD COD)    		 100 90 100, 100LL, Jet A, Jet A+
    99.0 Woltermann Meml Airport
    (6S3)    		 60 50 100LL

    Notices to Airmen (NOTAMS)

    NOTAMs

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    NM of 8M3

    Remarks

    A110-1 NO DOCKING LCTN AVBL.

    Runways

    Runway Summary

    Runways: 13W/31W
    Longest Runway: 13W/31W is 12007 ft (3660 m) long
    Runways with an Instrument Approach:

    8M3 Airport Runway Details

    Waterway 13W/31W  12007 ft x 3000 ft (3660 m x 914 m)
    Runway Length Source:  OWNER as of 04/17/2017
    Surface:  Water - No special surface treatment

    Waterway 13W

    Runway 31W
    Glide Path Angle: 
    		 0.0 degrees 0.0 degrees

    Services

    Airframe Repair: 
    		 Major
    Powerplant Repair: 
    		 Major
    Bottled Oxygen: 
    		 None
    Bulk Oxygen: 
    		 None
    Fuel Available: 
    		 100LL
    Landing Fees: 
    		 No
    Parking: 
    		 Tiedowns available

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    Maps & Diagrams

    8M3 Sectional

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    8M3 Diagram


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