| Identifier: | MADSN |
| NAS ID: | MADSN |
| Name: | MADSN |
| Fix Type: | Military |
| Fix Use: | |
| State: | MARYLAND |
| ICAO Region: | K6 |
| Latitude: | 38-16-16.860N (38.271400) |
| Longitude: | 076-25-47.130W (-76.429800) |
| Magnetic Variance: | 10.9 W as of 9/30/2025 |
| High ARTCC Area: | ZDC |
| Low ARTCC Area: | ZDC |
| Published: | Yes |
| Charts: | RNAV |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| ILS ID | ILS Facility Type | Direction / Course |
|---|---|---|
| NHK | ILS-DME | r59.13/.69 |
| MILITARY IAP |