Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Pioneer Pit (Wash.) | 11 | 0 | |
| Pioneer S&G (Wash.) | 2 | 0 | |
| Pioneer Spur (Wash.) | 0 | 0 | |
| Piper (Mont.) | 0 | 0 | |
| Piper's Siding (B.C.) | 2 | 0 | |
| Pipers Siding (B.C.) | 5 | 0 | |
| Pipestone (Minn.) | 200 | 0 | |
| Pipestone (Mont.) | 2 | 0 | |
| Pirtle (Or.) | 0 | 0 | |
| Pisek (N.D.) | 39 | 0 |