Three Forks (9S5)

Airport information: Three Forks, MT, United States. Search for another airport below.

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Location and general information

FAA identifier: 9S5
FAA site number: 12529.*A
City / state: Three Forks, MT
County: Gallatin
Time zone: America/Denver
Reference point: 45°52'41.20" N
111°34'10.00" W
Elevation: 4089.4 ft (surveyed)
Magnetic variation: 16° E (1985)
Status: Operational
Ownership: Public, Gallatin County
Use: Open to the public
Airport area: 182 acres
From downtown: 1 NM southeast
Sectional chart: Great Falls
Activated: 06/1949

Services and facilities

Control tower: No
Attendance: Continuous
Fuel: 100LL
Airframe / engine repair: Major / major
Transient storage: Hangar, tie-downs
Other services: Crop dusting, flight instruction, parachute jumping
ARTCC: Salt Lake City (ZLC)
Flight service: Great Falls (GTF)
1-800-WX-BRIEF
NOTAM facility: GTF
Wind indicator: Lighted
Beacon: White and green, sunset to sunrise
Segmented circle: Yes
Landing fee: No
Customs: No
Airport manager: Nick Bilton
406-570-0803
Last FAA inspection: 06/30/2023

FAA remarks

Occasional aerobatic maneuvers in the vicinity of airport.
Upon departure, all aircraft must reach 500 ft altitude prior to making any turns.
For CD contact big sky approach at 208-364-5860/5861, if unable contact Salt Lake ARTCC at 801-320-2568.
Use runway 21 for noise abatement winds permitting.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

FAA identifier: 9S5
Location: Three Forks, MT, United States
Elevation: 4089.4 ft
Time zone: America/Denver
Coordinates: 45.87811, -111.56944

Runways

Runway	Size	Surface
03 / 21	5,099 × 60 ft	Asphalt, good

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

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