| Navaid Facility ID: | HWQ |
| Official Navaid Facility ID: | HWQ |
| Navaid Facility Type: | NDB |
| Navaid Name: | Harlowton |
| City: | HARLOWTON |
| State: | MONTANA |
| FAA Region: | |
| Latitude: | 46-26-05.843N (46.435) |
| Longitude: | 109-49-56.660W (-109.8324) |
| Lat/Long Survey Accuracy: | |
| Owner: | STATE OF MONTANA |
| Operator: | STATE OF MONTANA |
| Common System Usage: | No |
| Public Use: | Yes |
| Navaid Class: | HW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 10.8 E as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | ZLC (SALT LAKE CITY) |
| ARTCC Low Altitude ID (Name): | ZLC (SALT LAKE CITY) |