| Navaid Facility ID: | MG |
| Official Navaid Facility ID: | MG |
| Navaid Facility Type: | NDB |
| Navaid Name: | Marra |
| City: | MONTGOMERY |
| State: | ALABAMA |
| FAA Region: | |
| Latitude: | 32-18-41.815N (32.3116) |
| Longitude: | 086-30-38.284W (-86.5106) |
| Lat/Long Survey Accuracy: | |
| Owner: | FEDERAL AVIATION ADMINISTRATION |
| Operator: | FEDERAL AVIATION ADMINISTRATION |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | MHW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 4 W as of 4/16/2025 |
| ARTCC High Altitude ID (Name): | ZTL (ATLANTA) |
| ARTCC Low Altitude ID (Name): | ZTL (ATLANTA) |