Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Ulm (Mont.) | 56 | 0 | |
| Ulmer (Mont) | 0 | 0 | |
| Umtanum (Wash.) | 3 | 0 | |
| Underwood (Iowa) | 0 | 0 | |
| Underwood (Minn.) | 5 | 0 | |
| Underwood (Wash.) | 21 | 0 | |
| Union Gap (Wash.) | 6 | 0 | |
| Union Grove (Wis.) | 0 | 0 | |
| Union (Ind.) | 0 | 0 | |
| Union Mill (Wash.) | 0 | 0 |