| Identifier: | ALTON |
| NAS ID: | ALTON |
| Name: | ALTON |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | MONTANA |
| ICAO Region: | K1 |
| Latitude: | 47-01-54.890N (47.031900) |
| Longitude: | 114-25-42.150W (-114.428400) |
| Magnetic Variance: | 12.8 E as of 9/30/2025 |
| High ARTCC Area: | ZLC |
| Low ARTCC Area: | ZLC |
| Published: | Yes |
| Charts: | RNAV |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| Navaid ID | Navaid Facility Type | Radial / DME Distance |
|---|---|---|
| MSO | VOR-DME | r284.84/16 |
| CONTROLLER LOW |
| ENROUTE LOW |
| IAP |