Airport information
- FAA LID
- 4U6
- Coordinates
- 47.4186, -105.5620
- Elevation
- 2,426 ft MSL
- Magnetic variation
- 9E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- Yes
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- GTF
- Attendance
- MON-FRI 0800-1700
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1940/04
- Distance from city
- 1 E
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:25 AM | 10:25Z |
| Sunrise | 05:05 AM | 11:05Z |
| Sunset | 09:03 PM | 03:03Z |
| Evening civil twilight Loggable night begins | 09:43 PM | 03:43Z |
Loggable night (§1.1)
09:43 PM → 04:25 AM
Night currency (§61.57)
10:03 PM → 04:05 AM
Plan a flight from 4U6
Runway 03/21
2,280 ft × 195 ft · Turf (Poor) 03
- Heading
- 039° mag · 48° true
- Traffic pattern
- Left
21
- Heading
- 220° mag · 229° true
- Traffic pattern
- Left
Runway 12/30
4,100 ft × 75 ft · Asphalt (Poor) 12
- Heading
- 131° mag · 140° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
30
- Heading
- 311° mag · 320° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CTAF | 122.8 |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Agricultural
Ownership & management
Owner
MC CONE COUNTY & CITY OF CIRCLE
COUNTY COURTHOUSE PO BOX199, CIRCLE, MT
406-485-3505
Manager
JEFF SKYBERG
BOX 336, CIRCLE, MT
406-485-2481
Remarks FAA
- HAS -8 FT DRAINAGE DITCH 200 FT FM RY 03/21 THLDS.
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- ACTVT MIRL RY 12/30 & PAPI RY 12 AND RY 30 - CTAF.
- CLSD WINTER MONTHS.
- 03/21 THRS MKD WITH RED CONES.
- RWY IS RUF, WITH LONG GRASS, RWY EDGES ARE NOT MKD.
- TRANSVERSE CRACKS AT 100 FT INTVLS WITH SGFNT WID AND DPT.
- UNUSBL IN WET WEATHER.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 4U6 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.