MineArchiveE. J. Mainwaring and A. H. Jamieson
Opened Penllwyn Colliery near Cross Hands in 1953.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Penllwyn Colliery | Carmarthenshire | 1953–? |
Record created: 10 October 2026 · Last researched: 10 October 2026
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