MineArchiveGreat Moelwyn Slate Company Ltd
Formally purchased the Moelwyn quarry site for £9,890 in 1860 and began underground working; reconstituted in 1865 with £50,000 of working capital.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Moelwyn Quarry | Gwynedd | 1860–1871 |
Record created: 30 August 2026 · Last researched: 30 August 2026