Ennis Big Sky Airport (EKS)

EKS
Ennis Big Sky Airport (EKS)
Ennis, MT
Location & QuickFacts
FAA Information Effective 2026-07-09
Airport Identifier EKS
Airport Status Operational
Longitude/Latitude 111°38'56.0960" W / 45°16'32.6090" N
-111.648916 / 45.275725 (Estimated)
Elevation 5432.60 ft / 1655.86 m (Surveyed)
From nearest city 6 nautical miles SE of Ennis, MT
Location Madison County, MT
Magnetic Variation 12E (2015)
Owner & Manager
Ownership Publicly owned
Owner MADISON COUNTY
Address MADISON COUNTY COURTHOUSE
PO BOX 278
VIRGINIA CITY, MT 59755-0278
Phone number 406-898-5172
Manager TROY HUNTER
Address 35 AIRPORT ROAD
ENNIS, MT 59729
Phone number 406-682-7502
Airport Operations and Facilities
Airport Use Open to public
Wind indicator Yes
Segmented Circle Yes
Control Tower NON-ATCT
Lighting Schedule SEE RMK
Beacon Color White-Green (lighted land airport)
Landing fee charge No
Sectional chart GREAT FALLS
Region ANM - Northwest Mountain
Responsible ARTCC ZLC - SALT LAKE CITY
Tie-in FSS GTF - GREAT FALLS
FSS on Airport No
FSS Toll Free 1-800-WX-BRIEF
NOTAMs Facility GTF (NOTAM-d service available)
Airport Communications
CTAF 122.8 MHz
UNICOM 122.8 MHz
AWOS-3P EKS (406-682-3835)
Airport Services
Fuel types 100LL,A1,A1+
Airframe repair MINOR
Power plant repair MINOR
Transient storage Hangar, Tiedown
Other services AMB,CHTR,INSTR,RNTL
Runway Information
Runway 16/34
Dimensions 7600 x 100 ft (2316 x 30 m)
Surface ASPH (EXCELLENT)
Surface treatment Saw-cut or plastic Grooved
Edge lights Medium
PCN 34
16 34
Alignment 177° 357°
Physical elevation 5432.60 ft 5348.90 ft
Coordinates 45.286125 / -111.649788 45.265324 / -111.648043
Traffic pattern Right Left
Runway marking Non-precision instrument , Good Condition Non-precision instrument , Good Condition
VGSI 4-light PAPI on left 4-light PAPI on left
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.