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Great 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

MineRegionYears
Moelwyn Quarry Gwynedd 1860–1871

Record created: 30 August 2026 · Last researched: 30 August 2026

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