Big Sky Field (S85)

Airport information: Culbertson, MT, United States. Search for another airport below.

Search Airports

Or Browse by Country

Search by city, airport name or code, or select a country to browse all airports.

Looking up airport info...

Location and general information

FAA identifier: S85
FAA site number: 12311.*A
City / state: Culbertson, MT
County: Roosevelt
Time zone: America/Denver
Reference point: 48°09'12.82" N
104°30'14.60" W
Elevation: 1,953 ft (surveyed)
Magnetic variation: 13° E (1985)
Status: Operational
Ownership: Public, Roosevelt County & City
Use: Open to the public
Airport area: 103 acres
From downtown: 1 NM northeast
Sectional chart: Billings
Activated: 10/1950

Services and facilities

Control tower: No
Attendance: Unattended
Fuel: 100LL
Airframe / engine repair: None / none
Transient storage: Tie-downs
Other services: Crop dusting, air ambulance, aerial surveying
ARTCC: Salt Lake City (ZLC)
Flight service: Great Falls (GTF)
1-800-WX-BRIEF
NOTAM facility: GTF
Wind indicator: Lighted
Beacon: White and green, sunset to sunrise
Segmented circle: Yes
Landing fee: No
Customs: No
Airport manager: Robert Jasper
406-787-5271
Last FAA inspection: 08/27/2025

FAA remarks

For CD contact Salt Lake ARTCC at 801-320-2568.
2,876 ft twrs 3.5 mis NW.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

FAA identifier: S85
Location: Culbertson, MT, United States
Elevation: 1,953 ft
Time zone: America/Denver
Coordinates: 48.15356, -104.50406

Runways

Runway	Size	Surface
08 / 26	3,800 × 60 ft	Asphalt, good

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

IATA Code

ICAO Code

Country

Timezone

Latitude

Longitude

City