1
Runway
3
Frequencies
0
Procedures
Quick Facts
FAA
S85
Elevation
1,953 ft MSL
Runways
1
Frequencies
3
Tower
No
Fuel
100LL
Coordinates
48.154, -104.504
Airport Information
Facility Type
AIRPORT
Elevation
1,953 ft MSL
Control Tower
No
CTAF
122.8 MHz
Fuel Types
100LL
Traffic Pattern
Not published
ARTCC
SALT LAKE CITY
Coordinates
48.1536, -104.5041
Ownership
Public
Hours of Operation
Current Weather
Advisory only — not an official or legal weather briefing. The pilot in command is the final authority (14 CFR 91.3).
Nearby Weather Cameras
No camera at S85. Showing nearest cameras.
Situational awareness only — not for regulatory minimums
FAA aviation weather camera images are for situational awareness. They may NOT be used to comply with regulatory requirements — for example, to determine weather minimums for IFR flight. Images are generally updated about every 10 minutes and actual site conditions may differ from the displayed image. FAA Order JO 7110.10, §8-3-3
Sidney Airport
North · Camera 1 · 4 cameras total
33 NM away
Wolf Point/Clayton Airport
North · Camera 1 · 4 cameras total
64 NM away
12 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Ends | Length | Width | Surface | Lights | Weight Bearing | PCN |
|---|---|---|---|---|---|---|---|
| 08/26 | 08 / 26 | 3,800 ft | 60 ft | ASPH | MED | SW (Single Wheel) 12,500 lbs | - |
Frequencies
| Type | Frequency | Name | Call Sign | Use | Hours |
|---|---|---|---|---|---|
| CTAF | 122.8 | BIG SKY FLDACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF. | - | CTAF | - |
| S85 AWOS-3 | 120.000 | - | - | S85 AWOS-3 | - |
| UNICOM | 122.8 | BIG SKY FLD | - | UNICOM | - |
Airport Remarks
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- 2,876 FT TWRS 3.5 MIS NW.
- ACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF.
- ON CALL ALL HOURS 406-787-6680/0660.
- SELF SERVICE CREDIT CARD 24/7
Nearby airports & facilities
KS85
Big Sky Field
Culbertson — <1 nm
02MT
Steppler Field
Culbertson — 13 nm
02MT
STEPPLER FLD
CULBERTSON — 13 nm
5ND0
Stiehl Airport
Buford — 19 nm
69MT
FLYING H
LAMBERT — 22 nm
69MT
Flying H Airport
Lambert — 22 nm
5U6
FAIRVIEW
FAIRVIEW — 25 nm
5U6
Fairview Airport
Fairview — 25 nm
PO1
POPLAR MUNI
POPLAR — 26 nm
PO1
Poplar Muni Airport
Poplar — 27 nm
20MT
Prevost Airport
Lambert — 28 nm
20MT
PREVOST
LAMBERT — 28 nm
Nearest airports
- KS85 — Big Sky Field
Culbertson
- 02MT — Steppler Field
Culbertson
- 02MT — STEPPLER FLD
CULBERTSON
- 5ND0 — Stiehl Airport
Buford
- 69MT — FLYING H
LAMBERT
Montana airports
S85 Operational Overview
Location & Facility
BIG SKY FLD (S85) is a publicly owned airport open to the public located in CULBERTSON, Montana, United States. The field sits at an elevation of 1,953 feet above mean sea level (MSL) at coordinates 48.1536°N, 104.5041°W.
Runways
BIG SKY FLD has 1 runway. The longest runway (08/26) measures 3,800 feet by 60 feet with a asph surface.
Communications & Operations
BIG SKY FLD is a non-towered (pilot-controlled) field. A total of 3 communication frequencies are published for this facility.
Services & Fuel
BIG SKY FLD offers 100LL fuel. Pilots planning fuel stops should confirm availability with the FBO, as hours and pricing may vary.
Weather Cameras
3 FAA Weather Cameras are available near BIG SKY FLD, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Frequently Asked Questions
What is S85?
S85 is the FAA location identifier for BIG SKY FLD, a public-use airport, located in CULBERTSON, Montana, United States.
How many runways does BIG SKY FLD have?
BIG SKY FLD (S85) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of S85?
The field elevation of BIG SKY FLD is 1,953 feet above mean sea level (MSL), surveyed.
Is fuel available at S85?
Yes, BIG SKY FLD offers 100LL fuel.
What is the longest runway at S85?
The longest runway at BIG SKY FLD is 3,800 feet long.
How much weight can the main runway at S85 support?
The main runway at BIG SKY FLD supports single-wheel landing gear aircraft up to 12,500 lbs.
How do I access complete data for S85?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for BIG SKY FLD.
Where is BIG SKY FLD located?
BIG SKY FLD (S85) is located in CULBERTSON, Montana, United States, at an elevation of 1,953 ft MSL.
Does S85 have weather cameras?
S85 does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.