MineArchiveMountain Colliery Company
Owned Mountain Colliery, Gorseinon, in 1906-08.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Mountain Colliery, Gorseinon | Swansea | ?–? |
Record created: 18 October 2026 · Last researched: 18 October 2026
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