Ennis Big Sky Airport

EKS · KEKS · Ennis, MT · 5,423 ft elevation · var 12E · Towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

ICAO / IATA: KEKS
Coordinates: 45.2718, -111.6490
Elevation: 5,423 ft MSL
Magnetic variation: 12E
Sectional chart: GREAT FALLS
Airport use: Public
Control tower: Yes
ARTCC: SALT LAKE CITY (ZLC)
Flight service (FSS): GREAT FALLS
NOTAM facility: GTF
Attendance: ALL 0700-1700
Beacon: white-green (SS-SR)
Segmented circle: Yes
Wind indicator: lighted
Activated: 1975/08
Distance from city: 6 SE

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-20

Event	Local (MDT)	UTC
Morning civil twilight Loggable night ends	05:01 AM	11:01Z
Sunrise	05:38 AM	11:38Z
Sunset	09:18 PM	03:18Z
Evening civil twilight Loggable night begins	09:56 PM	03:56Z

Loggable night (§1.1)

09:56 PM → 05:01 AM

Night currency (§61.57)

10:18 PM → 04:38 AM

Plan a flight from KEKS

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Runway 16/34

7,600 ft × 100 ft · Asphalt (Excellent)

Edge lights: Med. Weight bearing: Single wheel 87k, Double wheel 138k, Dual tandem 236k.

Heading: 165° mag · 177° true
Markings: nonprecision
VGSI: 4-light PAPI (left) (3°)
Traffic pattern: Right

Heading: 345° mag · 357° true
Markings: nonprecision
VGSI: 4-light PAPI (left) (3°)
Traffic pattern: Left

Communication frequencies

Service	Frequency	Notes
UNIC	122.8	CTAF/UNICOM

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
BZN · Bozeman	VOR-DME	112.40	r196° / 37.1 NM
DLN · Dillon	VOR-DME	113.00	r070° / 38 NM

Approaches

RNAV (GPS) RWY 16 ↗ · amdt 2
RNAV (GPS) RWY 34 ↗ · amdt 1

Departures

ENNIS TWO (OBSTACLE) (RNAV) ↗

Minimums & Hot Spots

Chart Supplement FAA A/FD

Open PDF ↗

Preview Chart Supplement

VFR sectional

Open KEKS on the VFR sectional (SkyVector) ↗

Services

Fuel available: 100LL, Jet A-1, Jet A-1 (additive)
Airframe service: MINOR
Powerplant service: MINOR
Parking: tiedowns, hangars
Other services: Air ambulance, Charter, Instruction, Rental

Ownership & management

Owner

MADISON COUNTY

MADISON COUNTY COURTHOUSE, PO BOX 278, VIRGINIA CITY, MT

406-898-5172

Manager

TROY HUNTER

35 AIRPORT ROAD, ENNIS, MT

406-682-7502

Remarks FAA

AFLD SFC COND UNMONITORED 1700-0700.
FOR SVC AFTER HRS CALL (406) 682-7502.
AFTER HRS CREDIT CARD FUELING.
DE-ICING TYPE 1 AVAIL.
FOR CD CTC BIG SKY APCH AT 208-364-5860/5861, IF UNABLE CTC SALT LAKE ARTCC AT 801-320-2568.
COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -24C.
ACTVT MIRL RWY 16/34 - CTAF. PAPI RWY 16 & 34 OPR CONSLY.
16/34 1020 FT DIST MKRS EACH END.

Nearby airports

47MT · 66 Ranch AirstripPrivate (5 NM)MT68 · Montfort Ranch AirportPrivate (6 NM)MT94 · Ousel Falls AirportPrivate (14 NM)1MT0 · Nine Quarter Circle Ranch AirportPrivate (19 NM)2MT5 · Briar Creek AirportPrivate (29 NM)24MT · Haggerty AirportPrivate (31 NM)

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KEKS in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.