Ennis Big Sky (EKS)

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

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Location and general information

ICAO code: KEKS
FAA identifier: EKS
FAA site number: 12342.02*A
City / state: Ennis, MT
County: Madison
Time zone: America/Denver
Reference point: 45°16'32.61" N
111°38'56.10" W
Elevation: 5432.6 ft (surveyed)
Magnetic variation: 12° E (2015)
Status: Operational
Ownership: Public, Madison County
Use: Open to the public
From downtown: 6 NM southeast
Sectional chart: Great Falls
Activated: 08/1975

Services and facilities

Control tower: No
Attendance: All months, all days, 0700-1700
Fuel: 100LL, Jet A-1, Jet A-1+
Airframe / engine repair: Minor / minor
Transient storage: Hangar, tie-downs
Other services: Air ambulance, charter, flight instruction, aircraft rental
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
Airport manager: Troy Hunter
406-682-7502
Last FAA inspection: 04/10/2026

FAA remarks

Airfield surface condition unmonitored 1700-0700.
For service after hours call (406) 682-7502.
After hours credit card fueling.
De-icing type 1 avail.
For CD contact big sky approach at 208-364-5860/5861, if unable contact Salt Lake ARTCC at 801-320-2568.
Cold temperature airport. Altitude correction required at or below -24C.

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

Airport facts

ICAO code: KEKS
FAA identifier: EKS
Location: Ennis, MT, United States
Elevation: 5432.6 ft
Time zone: America/Denver
Coordinates: 45.27572, -111.64892

Runways

Runway	Size	Surface
16 / 34	7,600 × 100 ft	Asphalt, excellent, grooved

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

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