Big Sky Field
General Aviation Airport · Culbertson, MT, United States
ICAOKS85IATA—LOCALS85
Zulu · UTC--:--:--Aviation standard time
Local · UTC-7--:--:--Approx. (from longitude)
Elevation1,954ft596 m
Longest runway3,800ft1,158 m
Runways11 lighted
Coordinates48.15, -104.548°09'11.9"N 104°30'14.4"W
ClassGeneral AviationNo scheduled service
Current weather
Weather unavailable
No current observation is being reported for this station.
Quick answers
- How many runways does Big Sky Field have?
- Big Sky Field has 1 runway; the longest is 3,800 ft (1,158 m). Field elevation is 1,954 ft.
- What are the tower and ATIS frequencies at KS85?
- CTAF 122.80 MHz (community data — confirm against current charts).
- What time is sunrise and sunset at KS85?
- On 2026-10-04, sunrise is at 13:02 UTC and sunset at 00:31 UTC; civil twilight ends at 01:02 UTC.
- Are there delays at KS85 right now?
- The FAA currently reports no ground stops, delay programs or closures at KS85.
Runways
08/26◐ lit
Radio frequencies
CTAF122.80
Frequencies (MHz) come from the OurAirports community dataset and can lag official changes. Confirm against the current chart supplement or AIP before flight.
Nearby navaids
Distance and true bearing from the airport reference point