| Identifier: | RIWSO |
| NAS ID: | RIWSO |
| Name: | RIWSO |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | CALIFORNIA |
| ICAO Region: | K2 |
| Latitude: | 36-51-20.240N (36.855600) |
| Longitude: | 119-47-55.420W (-119.798700) |
| Magnetic Variance: | 12.3 E as of 9/30/2025 |
| High ARTCC Area: | ZOA |
| Low ARTCC Area: | ZOA |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| IAP |