Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Sundal (Wash.) | 0 | 0 | |
| Sunburst (Mont.) | 95 | 0 | |
| Sun River (Mont.) | 37 | 0 | |
| Sun Prairie (Wis.) | 0 | 0 | |
| Sumter (Minn.) | 0 | 0 | |
| Sumner (Wash.) | 42 | 0 | |
| Summit (Wis.) | 0 | 0 | |
| Summit (Wash.) | 1 | 0 | |
| Summit Valley (Mont.) | 2 | 0 | |
| Summit (S.D.) | 0 | 0 |