Hyak Airbase (4U9)

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

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Location and general information

FAA identifier: 4U9
FAA site number: 12322.*A
City / state: Dell, MT
County: Beaverhead
Time zone: America/Denver
Reference point: 44°44'08.73" N
112°43'10.88" W
Elevation: 6,007 ft (surveyed)
Magnetic variation: 16° E (1985)
Status: Operational
Ownership: Private, Hyak Airbase LLC
Use: Open to the public
Airport area: 147 acres
From downtown: 1 NM northwest
Sectional chart: Great Falls
Activated: 02/1944

Services and facilities

Control tower: No
Attendance: Unattended
Airframe / engine repair: None / none
Transient storage: Tie-downs
ARTCC: Salt Lake City (ZLC)
Flight service: Great Falls (GTF)
1-800-WX-BRIEF
NOTAM facility: GTF
Wind indicator: Yes, unlighted
Segmented circle: No
Landing fee: No
Airport manager: Shauna Brewer
406-925-3121
Last FAA inspection: 06/30/2023

FAA remarks

Snow removal irregular.
Deer on and in the vicinity of airport.
For CD contact Salt Lake ARTCC at 801-320-2568.
Airfield surface condition unmonitored.
Landing fees for aircraft 12500 lb and over. Prior permission required.

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

Airport facts

FAA identifier: 4U9
Location: Dell, MT, United States
Elevation: 6,007 ft
Time zone: America/Denver
Coordinates: 44.73576, -112.71969

Runways

Runway	Size	Surface
15 / 33	7,002 × 75 ft	Asphalt, excellent

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

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