KEKS

VFR

ENNIS BIG SKY

ENNIS · MONTANA

Elev
5,432.6'
Longest RWY
7,600'16/34
Tower
None
Status
Uncontrolled
Now--Z· METAR19:50Z
Satellite top-down sketch of KEKS ENNIS BIG SKY showing runway layout — runways 16/34
Runways rendered from FAA survey · not for navExpand →
Before you fly into KEKS
Conditions
VFR
Good for visual flying
Airport
Non-towered
Self-announce on CTAF
Pattern alt
6,432.6'
MSL · field 5,432.6' + 1,000 AGL
Favored RWY
RWY 16
H/W +0 · X/W 5 kt L

METAR & TAF KEKS

Current METAR

Observed 19:50Z

KEKS 111950Z AUTO 09005G12KT 10SM CLR 16/M00 A3018 RMK AO2
Wind
090° @ 5G12 kt
Visibility
10 SM
Temp / Dew
16°C / 0°C
Altimeter
30.18 inHg
Clouds
CLR
Density alt
6,534 ft
Ceiling
Unlimited
Rules
VFR

Airport info & contacts

Manager on record, flight service, ARTCC, attendance schedule and pattern altitude — published by the FAA and refreshed every 28 days.

Location

From city
6 NM SE
VFR sectional
GREAT FALLS
ARTCC
ZLC · SALT LAKE CITY
NOTAM facility
GTF (NOTAM-D)

Airport manager

Name
TROY HUNTER
Address
35 AIRPORT ROAD, ENNIS MT 59729

Flight service · Hours

FSS GTF
GREAT FALLS1-800-WX-BRIEF
Attendance
  • 0700-1700

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF
Approach / Departure

Runways & pattern

Full page

Runway & wind

tap a runway
090° · 5 kt
RWY 16
165°M
Head/Tail
+0 kt
Crosswind
5 kt L

Pattern entry · RWY 16

RIGHT TRAFFIC
CrosswindCrosswindDownwindDownwindBaseBaseFinalFinal45° entry45° entryRWY 16 · 165° · RIGHT TRAFFICPattern 6,433 ft MSL
RunwayHeading (°M)LengthSurfaceTraffic
16/34Favored165° / 345°7,600 ftASPH16 R

Runway end performance

EndTORATODAASDALDAVGSIApproach lightsObstruction
16PAPI 4-box left(3°)56', fence, 1765' from thr, 350' R of cntrln, slope 27
34PAPI 4-box left(3°)

Declared distances in feet. TORA = takeoff run available, TODA = takeoff distance, ASDA = accelerate-stop, LDA = landing distance.

Airport sketch

Runways drawn to scale from FAA survey coordinates, rendered over satellite imagery. Not for navigation.

Top-down satellite sketch of KEKS ENNIS BIG SKY in ENNIS, MONTANA, showing runways 16/34 drawn to scale over Esri World Imagery

Approaches & charts

RNAV (GPS) RWY 16
KEKS · IAP
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Services on the field

Fuel grades, oxygen, maintenance, ramp storage and lighting — as declared to the FAA by the airport operator.

Fuel & services

Fuel
100LLA1A1+
Airframe repair
Minor
Power plant repair
Minor
Other services
AMB,CHTR,INSTR,RNTL

Ramp & ground

Transient storage
  • Tie-down
  • Hangar
Landing fee
No fee published
Lighting schedule
SEE RMK
Beacon schedule
SS-SR
Beacon
White / Green (civil land)(WG)
Wind indicator
Lighted
Segmented circle
Yes

Fuel & FBOs

Cheapest 100LL and Jet A on the field and nearby. Always confirm with the FBO before taxi.

Airport notes

Surface conditions, obstructions, local procedures, lighting outages and other notes published with each FAA cycle.

General notes

  • 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.

Lighting notes

  • ACTVT MIRL RWY 16/34 - CTAF. PAPI RWY 16 & 34 OPR CONSLY.

Approach & departure obstructions

  • 1616/34 1020 FT DIST MKRS EACH END.

VFR map & nearby airports

VFR sectional. Tap any ICAO chip to open that airport.

Key facts · KEKS

Answer card
ICAO
KEKS
Name
ENNIS BIG SKY
Location
ENNIS, MONTANA
Elevation
5,432.6 ft MSL
Traffic pattern altitude
6,432.6 ft MSL (1,000 AGL)
Control tower
Non-towered (use CTAF)
Total runways
1
Longest runway
16/34 · 7,600 ft
Published ILS approaches
0
Published frequencies
4
Magnetic variation
12°
Current flight rules
VFR
Current wind
090° at 5 kt
Favored runway now
RWY 16

Ennis Big Sky Airport sits in Ennis, Montana. The field elevation is 5,432.6 ft MSL. It has one runway, 16/34, which is 7,600 ft long. There is no control tower. Pattern altitude is not published, so use the standard 1,000 ft AGL for light piston operations unless the current Chart Supplement says otherwise. That puts the traffic pattern near 6,400 ft MSL.

No ILS approaches are published here. Big Sky Approach handles clearance delivery. If you cannot reach them, Salt Lake ARTCC is the backup contact listed in the remarks. The runway lights on 16/34 are activated by CTAF. The PAPI on both runway ends operates continuously. Runways 16 and 34 also have 1,020 ft distance markers at each end.

Ascension FBO is on the field. It carries AVGAS 100LL, Jet A and Jet A Prist. After-hours service and fueling are available by phone. This is a cold temperature airport, so altitude correction is required at or below minus 24 degrees Celsius. Airfield surface condition is unmonitored from 1700 to 0700. Plan extra caution if you are arriving late. The field sits in a mountain state environment with high elevation, so performance planning matters even with a long runway.

Frequently asked questions

What is the pattern altitude at KEKS?
Pattern altitude is not published. Use the standard 1,000 ft AGL for light piston traffic unless the current Chart Supplement says otherwise. That puts the pattern near 6,400 ft MSL.
Does KEKS have any ILS approaches?
No ILS approaches are published for KEKS. Check the current Chart Supplement for the latest approach list before you go.
Is Ennis Big Sky Airport towered?
No. KEKS is an untowered airport. Use CTAF 122.8 for local traffic calls and runway lighting activation.
What runway length does KEKS have?
KEKS has one runway, 16/34. It is 7,600 ft long. That gives you room. The field elevation is 5,432.6 ft MSL so performance still deserves attention.
Which FBO is on the field at KEKS?
Ascension FBO is the on-field FBO. It carries AVGAS 100LL, Jet A and Jet A Prist. Call (406) 682-7502 for current service or after-hours fueling.
How do you activate the runway lights at KEKS?
The medium intensity runway lights on 16/34 are activated by CTAF. The PAPI on both runway ends operates continuously.
Who do I call for clearance delivery at KEKS?
Contact Big Sky Approach at 208-364-5860 or 208-364-5861 for clearance delivery. If that does not work, the remarks list Salt Lake ARTCC at 801-320-2568.
Is KEKS a cold temperature airport?
Yes. The remarks say altitude correction is required at or below minus 24 degrees Celsius. Plan for that in winter operations and verify the current procedure in the Chart Supplement.

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