| Navaid Facility ID: | LSO |
| Official Navaid Facility ID: | LSO |
| Navaid Facility Type: | NDB |
| Navaid Name: | Kelso |
| City: | KELSO |
| State: | WASHINGTON |
| FAA Region: | |
| Latitude: | 46-09-19.943N (46.1555) |
| Longitude: | 122-54-46.199W (-122.9128) |
| Lat/Long Survey Accuracy: | 1 second or better |
| Owner: | CITY OF KELSO |
| Operator: | CITY OF KELSO |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | MHW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 14.8 E as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | ZSE (SEATTLE) |
| ARTCC Low Altitude ID (Name): | ZSE (SEATTLE) |
| Navaid ID | Navaid Facility Type | Remarks |
|---|---|---|
| LSO | NDB | NDB UNUSBL 020-120; 120-180 BYD 15 NM; 180-340 BYD 10 NM. |