Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Plains (Mont.) | 12 | 0 | |
| Placer (Mont.) | 0 | 0 | |
| Placer (Idaho) | 13 | 0 | |
| Pizarro (Wash.) | 0 | 0 | |
| Pittsville (Wis.) | 0 | 0 | |
| Pittsburgh (Pa.) (1) | 4 | 0 | |
| Pittsburg (Pa.) | 2 | 0 | |
| Pittsburg (N.D.) | 0 | 0 | |
| Pitt (Wash.) | 5 | 0 | |
| Pitcher (Wash.) | 2 | 0 |