| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 4 | 0-6-0 | 36" | Walla Walla & Columbia River Railroad | Fort Walla Walla Museum, Walla Walla, WA | display | Porter Bell Co (Pittsburgh) #283, 01/1878 | Named Blue Mt., oldest locomotive in Washington; From Pasco. |