Circle, Montana
4U6 Circle Town County
Circle Town County (4U6) is a non-towered, public-use airport in Circle, Montana, at 2,441.4 ft MSL. It has 2 runways: 03/21 (2,280 by 195 ft, turf), 12/30 (4,100 by 75 ft, asphalt). CTAF 122.8.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA 4U6
- Location
- Circle, Montana (Mc Cone County). 1 NM E of the city center
- Elevation
- 2,441.4 ft MSL
- Position
- 47.4183° N, 105.5609° W
- Control tower
- No, non-towered
- Sectional chart
- Billings
- Magnetic variation
- 9° E (2015)
- Fuel
- 100LL
- Ownership
- Publicly owned, open to the public
- Attendance
- MON-FRI 0800-1700
2 runways
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 03/21 | 2,280 × 195 ft | Turf, poor condition | Not listed |
| 12/30 | 4,100 × 75 ft | Asphalt, poor condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 03 | Left traffic | None listed | None listed | None listed | Not listed |
| 21 | Left traffic | None listed | None listed | None listed | Not listed |
| 12 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
| 30 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.8
- Actvt Mirl Ry 12/30 & Papi Ry 12 and Ry 30 - Ctaf.
- UNICOM
- 122.8
Weather station
- AWOS-2 4U6
- 119.025
Before you go
Brief 4U6 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Circle Town County, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.