Ennis Big Sky Airport

EKS · KEKS · Ennis, MT · 5,423 ft elevation · var 12E · Non-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: No
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 2026-06-21

Event	Local (MDT)	UTC
Morning civil twilight Loggable night ends	05:01 AM	11:01Z
Sunrise	05:39 AM	11:39Z
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 → 04:39 AM

Plan a flight from KEKS

Destination (ICAO)

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

Night operations

Airport lighting: SEE RMK
Rotating beacon: white-green · SS-SR
Pilot-controlled lighting: ACTVT MIRL RWY 16/34 - CTAF. PAPI RWY 16 & 34 OPR CONSLY. on 122.8 — Chart Supplement ↗

Runway lighting aids — 16: 4-light PAPI (left) · 34: 4-light PAPI (left).

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.

Traffic pattern

Landing runway

RIGHT traffic

Landing: Rwy 16 · 165°
Pattern: right (turns right)
TPA: 6,400 ft MSL (≈1,000 AGL)
CTAF: 122.8

Enter the right downwind for Rwy 16 at 6,400 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

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
Approach obstacle: Fence, 56 ft, 1,765 ft from threshold, 350 ft L of centerline — 27:1 slope to clear

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

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
16/34	7,600 ft

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

Procedures at a glance

Lowest mins: RNAV (GPS) · vertical guidance Takeoff mins / ODP ↗ Non-std alternate mins ↗

Approaches2

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. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.

About KEKS

Ennis Big Sky Airport (EKS · KEKS) is an airport in Ennis, MT, at 5,423 ft MSL. It has 1 runway, the longest 7,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KEKS, refreshed from the Aviation Weather Center and FAA NASR.

Does KEKS have a control tower?

No. Ennis Big Sky Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.

What is the longest runway at KEKS?

Ennis Big Sky Airport has 1 runway; the longest is 7,600 ft. See the Runways tab for headings, surface, and lighting.

Where is KEKS?

Ennis Big Sky Airport is in Ennis, MT, at an elevation of 5,423 ft MSL. Coordinates: 45.2718, -111.6490.

Fly out of KEKS often?

Save KEKS as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.

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