| Navaid Facility ID: | YFM |
| Official Navaid Facility ID: | |
| Navaid Facility Type: | NDB |
| Navaid Name: | Lg 4 |
| City: | |
| State: | |
| FAA Region: | |
| Latitude: | 53-42-42.48N (53.7118) |
| Longitude: | 73-42-10.44W (-73.7029) |
| Lat/Long Survey Accuracy: | |
| Owner: | |
| Operator: | |
| Common System Usage: | |
| Public Use: | |
| Navaid Class: | |
| Hours of Operation: | |
| Magnetic Variance: | 16.3 W as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | () |
| ARTCC Low Altitude ID (Name): | () |