MineArchiveRees Llewellyn and Sons
Started Llwynhelig Colliery at Cwmdare, Aberdare, about 1906.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Llwynhelig Colliery | Rhondda Cynon Taf | 1906–1911 |
Record created: 7 October 2026 · Last researched: 7 October 2026
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