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| Railway name | Locale | Operating years | Comments |
|---|---|---|---|
| Inverness Railway and Coal Company | Acquired by CNoR. | ||
| Intercolonial Railway of Canada | Operated by CGR, entrusted to CNR. | ||
| International Railway | Acquired by CPR. | ||
| Irondale, Bancroft and Ottawa Railway | Acquired by CNoR. |
Read more about this topic: List Of Defunct Canadian Railways