Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Adair Slough (Or.) | 1 | 0 | |
| Adair (Idaho) | 0 | 0 | |
| Ada (Minn.) | 130 | 0 | |
| Acton (Mont.) | 37 | 0 | |
| Acropolis (Minn.) | 17 | 0 | |
| Acme (Wash.) | 53 | 0 | |
| Acme (Mont.) | 83 | 0 | |
| Accord (Mont.) | 16 | 0 | |
| Accola (Mont.) | 0 | 0 | |
| Academy Spur (Wash.) | 0 | 0 |