| Navaid Facility ID: | GDX |
| Official Navaid Facility ID: | GDX |
| Navaid Facility Type: | NDB |
| Navaid Name: | Goodwin Lake |
| City: | UPPERVILLE |
| State: | VIRGINIA |
| FAA Region: | |
| Latitude: | 38-57-14.396N (38.954) |
| Longitude: | 077-49-51.981W (-77.8311) |
| Lat/Long Survey Accuracy: | 10 seconds |
| Owner: | PAUL MELLON |
| Operator: | PAUL MELLON |
| Common System Usage: | No |
| Public Use: | Yes |
| Navaid Class: | MHW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 10.3 W as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | ZDC (WASHINGTON) |
| ARTCC Low Altitude ID (Name): | ZDC (WASHINGTON) |