| FAA Information Effective: | 2013-12-12 |
| Airport Identifier: | 4U6 |
| Airport Status: | Operational |
| Longitude/Latitude: | 105-33-39.2000W/47-25-06.0000N -105.560889/47.418333 (Estimated) |
| Elevation: | 2441 ft / 744.02 m (Surveyed) |
| Land: | 140 acres |
| From nearest city: | 1 nautical miles E of Circle, MT |
| Location: | Mc Cone County, MT |
| Magnetic Variation: | 09E (2015) |
| Ownership: | Publicly owned |
| Owner: | Mc Cone County & City Of Circle |
| Address: | County Courthouse Po Box199 Circle, MT 59215 |
| Phone number: | 406-485-3505 |
| Manager: | Jeff Skyberg |
| Address: | Box 336 Circle, MT 59215 |
| Phone number: | 406-485-2481 |
| Airport Use: | Open to public |
| Wind indicator: | Yes WIND TEE HAS BEEN REMOVED, USE LIGHTED WIND SOCK |
| Segmented Circle: | Yes |
| Control Tower: | No |
| Lighting Schedule: | SEE RMK ACTVT MIRL RY 12/30 & PAPI RY 12 AND RY 30 - CTAF. |
| Beacon Color: | Clear-Green (lighted land airport) |
| Landing fee charge: | No |
| Sectional chart: | Billings |
| Region: | ANM - Northwest Mountain |
| Boundary ARTCC: | ZLC - Salt Lake City |
| Tie-in FSS: | GTF - Great Falls |
| FSS on Airport: | No |
| FSS Toll Free: | 1-800-WX-BRIEF |
| NOTAMs Facility: | GTF (NOTAM-d service avaliable) |
| Federal Agreements: | NGY |
| CTAF: | 122.800 |
| Unicom: | 122.800 |
| Fuel available: | 100LL |
| Airframe Repair: | MAJOR |
| Power Plant Repair: | MAJOR |
| Bottled Oxygen: | NONE |
| Bulk Oxygen: | NONE |
| Dimension: | 2280 x 195 ft / 694.9 x 59.4 m |
| Surface: | TURF, Poor Condition RWY IS ROUGH, WITH LONG GRASS. UNUSBL IN WET WEATHER. |
| Runway 03 | Runway 21 | |
|---|---|---|
| Longitude: | 105-33-55.6138W | 105-33-30.7810W |
| Latitude: | 47-24-57.5221N | 47-25-12.4268N |
| Elevation: | 2426.00 ft | 2422.00 ft |
| Alignment: | 48 | 127 |
| Traffic Pattern: | Left | Left |
| Dimension: | 4100 x 75 ft / 1249.7 x 22.9 m |
| Surface: | ASPH, Good Condition RWY IS ROUGH, WITH LONG GRASS. UNUSBL IN WET WEATHER. |
| Weight Limit: | Single wheel: 12500 lbs. |
| Edge Lights: | Medium |
| Runway 12 | Runway 30 | |
|---|---|---|
| Longitude: | 105-33-56.0771W | 105-33-17.7072W |
| Latitude: | 47-25-22.1085N | 47-24-51.1446N |
| Elevation: | 2425.00 ft | 2441.00 ft |
| Alignment: | 127 | 127 |
| Traffic Pattern: | Left | Left |
| Markings: | Non-precision instrument, Good Condition | Non-precision instrument, Good Condition |
| Crossing Height: | 25.00 ft | 21.00 ft |
| VASI: | 2-light PAPI on left side | 2-light PAPI on left side |
| Visual Glide Angle: | 3.00° | 3.00° |
| HAS -8 FT DRAINAGE DITCH 200 FT FM RY 03/21 THLDS. |