Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Portland Junction (N.D.) | 6 | 0 | |
| Portland Jct. (N.D.) | 0 | 0 | |
| Portland (Iowa) | 0 | 0 | |
| Porthill | 1 | 0 | |
| Porter's (Wis.) | 0 | 0 | |
| Porters Mills (Wis.) | 0 | 0 | |
| Porterfield (Wis.) | 0 | 0 | |
| Porter (Wash.) | 4 | 0 | |
| Portal (Mont.) | 29 | 0 | |
| Portage (Wis.) | 0 | 0 |