| Identifier: | GRSIS |
| NAS ID: | GRSIS |
| Name: | GRSIS |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | MINNESOTA |
| ICAO Region: | K3 |
| Latitude: | 43-38-45.540N (43.646000) |
| Longitude: | 094-25-21.170W (-94.422500) |
| Magnetic Variance: | 0.9 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 |