| Identifier: | GRMMA |
| NAS ID: | GRMMA |
| Name: | GRMMA |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | CALIFORNIA |
| ICAO Region: | K2 |
| Latitude: | 35-43-42.130N (35.728400) |
| Longitude: | 115-33-20.390W (-115.555700) |
| Magnetic Variance: | 11.1 E as of 9/30/2025 |
| High ARTCC Area: | ZLA |
| Low ARTCC Area: | ZLA |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| CONTROLLER LOW |
| ENROUTE LOW |
| STAR |