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Reopened Cwmmawr Colliery above Cwmafan in 1939 and worked its Big Vein and Four Feet levels from 1942 to 1944.
| Mine | Region | Years |
|---|---|---|
| Cwmmawr Colliery | Neath Port Talbot | 1939–1944 |
Record created: 7 October 2026 · Last researched: 7 October 2026
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