Big Sky Field (S85)
Non-towered public-use airport serving Culbertson, Montana, at 1,953 ft elevation.
Elevation1,953 ft
ControlNon-towered
Longest runway3,800 ft
Magnetic variation13° E
Live weather
Forecast (TAF)
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Frequencies
| AWOS/ASOS | 120.000 |
|---|---|
| CTAF | 122.8 |
| UNICOM | 122.8 |
Runways
| Runway | Size | Surface | Lights |
|---|---|---|---|
| 08/26 | 3,800 × 60 ft | Asphalt | Medium intensity |
Fuel: 100LL. Sectional: Billings.
Runway diagram
Drawn to scale from FAA runway-end data, true north up. Not for navigation: use the official FAA airport diagram and Chart Supplement.
Nearby airports
5U6Fairview25 NM SEPO1Poplar Municipal26 NM WKSDYSidney-Richland Regional30 NM SEKPWDSher-Wood38 NM N7U8Richey39 NM SWKOLFL M Clayton43 NM W
Before you fly here
- Read the FAA Chart Supplement entry for S85: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
- Check NOTAMs and get a weather briefing at 1800wxbrief.com.
- Study the airport diagram and the sectional around S85 for airspace and terrain.
- More detail: AirNav · SkyVector
Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 1985. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.