| Identifier: | MDSON |
| NAS ID: | MDSON |
| Name: | MDSON |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | CONNECTICUT |
| ICAO Region: | K6 |
| Latitude: | 41-18-49.850N (41.313800) |
| Longitude: | 072-41-31.840W (-72.692200) |
| Magnetic Variance: | 13.2 W as of 9/30/2025 |
| High ARTCC Area: | |
| Low ARTCC Area: | ZBW |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| IAP |