| Identifier: | MADDT |
| NAS ID: | MADDT |
| Name: | MADDT |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ILLINOIS |
| ICAO Region: | K5 |
| Latitude: | 38-38-54.810N (38.648600) |
| Longitude: | 089-56-42.470W (-89.945100) |
| Magnetic Variance: | 2.2 W as of 9/30/2025 |
| High ARTCC Area: | ZKC |
| Low ARTCC Area: | ZKC |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| IAP |
| MILITARY IAP |