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The company that opened the Rockwood slant mines at Taffs Well about 1905, later Rockwood Collieries Ltd.
| Mine | Region | Years |
|---|---|---|
| Rockwood Colliery | Rhondda Cynon Taf | 1905–? |
Record created: 4 October 2026 · Last researched: 4 October 2026
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