| Identifier: | MADUP |
| NAS ID: | MADUP |
| Name: | MADUP |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | IOWA |
| ICAO Region: | K3 |
| Latitude: | 41-56-26.250N (41.940600) |
| Longitude: | 095-06-00.370W (-95.100100) |
| Magnetic Variance: | 1.4 E as of 9/30/2025 |
| High ARTCC Area: | ZMP |
| Low ARTCC Area: | ZMP |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| CONTROLLER LOW |
| ENROUTE LOW |
| IAP |