Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Skagit Valley (Wash.) | 11 | 0 | |
| Skamania (Wash.) | 61 | 0 | |
| Skipanon (Or.) | 4 | 0 | |
| Skones (Mont.) | 3 | 0 | |
| Skykomish (Wash.) | 555 | 0 | |
| Skyland (Mont.) | 13 | 0 | |
| Skyline (Mont.) | 44 | 0 | |
| Slater (Iowa) | 0 | 0 | |
| Slater (Wash.) | 2 | 0 | |
| Slatten (N.D.) | 2 | 0 |