Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Plankinton (S.D.) | 0 | 0 | |
| Plateau (Mont.) | 3 | 0 | |
| Plato (Minn.) | 0 | 0 | |
| Platt Mine (Minn.) | 3 | 0 | |
| Platte (S.D.) | 0 | 0 | |
| Platteville (Wis.) | 0 | 0 | |
| Plaza (Wash.) | 2 | 0 | |
| Pleasant Creek (Iowa) | 0 | 0 | |
| Pleasant Lake (N.D.) | 53 | 0 | |
| Pleasant Valley (Iowa) | 0 | 0 |