MineArchiveSwansea Navigation Mines Co.
Held Cae Duke Colliery at Upper Loughor by 1939.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Cae Duke Colliery | Swansea | 1939–1947 |
Record created: 10 October 2026 · Last researched: 10 October 2026
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