Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Iron River (Wis.) | 0 | 0 | |
| Ironton (Minn.) | 0 | 0 | |
| Iroquois Mine (Minn.) | 1 | 0 | |
| Iroquois Mine (Minn.) | 9 | 0 | |
| Iroquois (Minn.) | 1 | 0 | |
| Irvin (Wash.) | 3 | 0 | |
| Irvine Creek (Wis.) | 0 | 0 | |
| Irvine (Or.) | 0 | 0 | |
| Irving (Tex.) | 1 | 0 | |
| Irwin (Wash.) | 12 | 0 |