Airport & FBO Info for KEKS/EKS ENNIS - BIG SKY ENNIS MT
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KEKS

ENNIS - BIG SKY       ENNIS       MT
  Time Zone: Mountain 
Lat: N 4516.5     Long: W 11138.9    Elev: 5433     Var: -12  Longest Runway: 7600
    AWOS: 119.85        CTAF: 122.8

FBO & Flight Services info for KEKS

FBOs: Update your Fuel Prices

ASCENSION FBOPh: 406-682-7502 Fax: 307-587-9252 Freq: 122.8
Service
Jet
100LL
80/87
MoGas
Fuel Avail: PRIST INJECTED +$0.15/gal.
Full8.996.85    Last Update: 03/27/2026 14:38

Self  5.85    
 Address: 37 RUNWAY RD.,   ENNIS, MT 59729
AWOSPh: 406-682-3835
-
Freq: 119.85  
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Runway & Approach Info for KEKS
Rwy
Length
Land Dist**
Approach*
  Rwy
Length
Land Dist**
Approach*
16
7600x100  7600'          
 
  
34
  7600x100  7600'          
 
 * only ILS, LOC, LDA, and SDF approaches to a specific runway are shown
** For any Declared Landing Distance Available, please see A/FD or Approach plates
Runway Weight Capability (lbs.) Help
Runway IDSingle WheelDouble WheelDouble Tandem WheelDual Double Wheel
16/3487,000138,000236,000N/A
These numbers are Advisory and are not limits.   The Airport Manager should have more accurate Weight Limits
Please email Support@FltPlan.com for further information.
Approach Charts
Approaches    
Current Weather/Notams
Customs Information Send updates to Support@FltPlan.com
Customs Not Available
A/FD
Airport / Facility DirectoryA/FD Legend
Database effective 04/16/2026
Airport Diagram of KEKS
Airport Diagram might not be current.

Facility Name: ENNIS BIG SKY
City Name: ENNIS
County: MADISON
State abbrev: MT
State Name: MONTANA
   
Ownership: PUBLICLY OWNED
Use: OPEN TO THE PUBLIC
Owner's Name: MADISON COUNTY
Address: MADISON COUNTY COURTHOUSE, PO BOX 278
 VIRGINIA CITY, MT 59755-0278
Owner's Phone: 406-843-4277
  
Manager's Name: TROY HUNTER
Address: 35 AIRPORT ROAD
 ENNIS, MT 59729
Phone: 406-682-7502
   
FAA Region: NORTHWEST MOUNTAIN
FAA Field Office: HLN
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Sunrise / Sunset times for ENNIS BIG SKY

DateSunriseSunset
04/03/26 Friday7:0419:57
04/04/26 Saturday7:0219:58
04/05/26 Sunday7:0020:00
04/06/26 Monday6:5820:01
04/07/26 Tuesday6:5620:02
04/08/26 Wednesday6:5420:03
04/09/26 Thursday6:5320:05
04/10/26 Friday6:5120:06
04/11/26 Saturday6:4920:07
04/12/26 Sunday6:4720:09
04/13/26 Monday6:4520:10
04/14/26 Tuesday6:4420:11
04/15/26 Wednesday6:4220:12
04/16/26 Thursday6:4020:14

Airport Facilities

Airport Attendance Schedule7 Days A Week 0700-1700
Airport Status OPERATIONAL (This Status can change at any time - please check NOTAMS)
Airport Lighting ScheduleACTVT MIRL RWY 16/34 - CTAF. PAPI RWY 16 & 34 OPR CONSLY.
Airport Storage AvailableTie Downs, Hanger
Extra Services AvailableAir Ambulance, Charter, Flight Instruction, Aircraft Rental
Wind IndicatorYES - (lighted)
Control TowerNO
CTAF Frequency122.800
Unicom Frequency122.800
Rotating Beacon ColorWG
Segmented CircleYES
Landing FeeNO

Airport Inspection Data

Airport InspectedSTATE - performed by STATE AERONAUTICAL PERSONNEL
Inspection Date05/10/2023

Airport Services

Type of Fuel AvailableGrade 100LL, JET A-1 (freeze point -50C), JET A-1 (icing inhibitor, freeze point -50C)
Airframe Repair ServiceMINOR
Power Plant Repair ServiceMINOR

Geographic Data

LatitudeN4516.5
LongitudeW11138.9 (ESTIMATED)
Arpt Elevation5432ft (SURVEYED)
Magnetic Variation12E
6 miles SEof ENNIS
Traffic Pattern Altitude
Sectional ChartGREAT FALLS

Aircraft Data

Operations (Reported)YearlyAvg. Daily
General Aviation Transient 00
General Aviation Local 00
Air Taxi 00
Commerical 00
Commuter 00
Military 00
Aircraft based on Field
General Aviation Singles 0
General Aviation Multi 0
Jet Aircraft 0
General Aviation Helicopters 0
Military Aircraft 0
Gliders 0
Ultralights 0

FAA Services

FSS on field NO
FSS tie-in GREAT FALLS
FSS Phone 1-800-WX-BRIEF
Who issues Notams GTF
Notam D service at airport YES
ARTCC Name SALT LAKE CITY

Federal Status

Airport Certification
Aircraft Rescue & Firefighting IndexNone
Airport of EntryNo
Custom Landing RightsNo
Joint Civil/MilitaryNo
Military Landing rightsNo

Federal Agreements

NATIONAL PLAN OF INTEGRATED AIRPORT SYSTEMS (NPIAS)

Remarks

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.
Airport Communications & Frequencies:
CTAF Frequency:
122.800
Unicom Frequency:
122.800
Remarks
  • APCH/DEP CTL SVC PRVDD BY SALT LAKE CITY ARTCC (ZLC) ON FREQS 118.975/226.675 (BOZEMAN A RCAG) WHEN BIG SKY APCH CTL (BOI) IS UNAVAILABLE 0615-1200Z++.
    • BIG SKY Primary Approach Frequencies:  
    118.975
    226.675
    BIG SKY Primary Departure Frequencies:  
    118.975
    226.675
    Runway Identifications
    Runway Identification: 16/34
    Length: 7600 ft
    Width: 100 ft
    Surface: ASPHALT
    Edge lights: Medium Intensity
    Treatment: GROOVED
    Weight: PCN 34 /F/B/X/U

     Runway: 16   Runway: 34
    Mag heading: 165°Mag heading: 345°
    Rwy Slope: -1.10% DownRwy Slope: 1.10% Up
    Approach: Approach:
    Pattern: Right TrafficPattern: Left Traffic
    Markings: NONPRECISION INSTRUMENTMarkings: NONPRECISION INSTRUMENT
    Marking Condition: GOOD; 16/34 1020 FT DIST MKRS EACH END.Marking Condition: GOOD
    Arresting Dev: Arresting Dev:
    Lat & Long: N4517.2  W11139.0Lat. & Long.: N4515.9  W11138.9
    Elev: 5432.6 ft. MSLElev: 5348.9 ft. MSL
    TCH: 38 ft. AGLTCH: 40 ft. AGL
    Visual Glide Path: 3.00 degreesVisual Glide Path: 3.00 degrees
    Displaced Threshold: NoDisplaced Threshold: No
    Touchdown Zone: YESTouchdown Zone: YES
    Touchdown Elev.: 5432.6 feetTouchdown Elev.: 5369.7 feet
    Visual Glide Slope: 4-Light PAPI on LEFT side of RunwayVisual Glide Slope: 4-Light PAPI on LEFT side of Runway
    RVR Equipment: RVR Equipment:
    RVV Equipment: NORVV Equipment: NO
    Approach Lights: Approach Lights:
    REIL: NOREIL: NO
    Centerline Lights: NOCenterline Lights: NO
    Touchdown lights: NOTouchdown lights: NO
    Runway Category: Runway with a Non-precision Approach having visibility minimums greater than 3/4 mileRunway Category: Runway with a Non-precision Approach having visibility minimums greater than 3/4 mile
    Declared Distances: Declared Distances:
    Obstructions: FENCEObstructions:
    Marked: NOT Marked/LightedMarked:
    Clearance slope: 27:1Clearance slope: 34:1
    Obstruction height: 56 feet AGLObstruction height:
    Dist. from runway: 1765 feetDist. from runway:
    Centerline offset: 350 right of centerlineCenterline offset:
    Comments: Comments:
    C:7/P:

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