MineArchiveGriffith Williams Griffiths
A Corris-district quarryman who had already worked his own small quarry at the top of Cwm Hengae for nearly a decade before taking over the Cambergi lease in 1875; developed the neighbouring Hengae quarry from 1877 once Cambergi's own slate proved poor quality.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Cambergi Quarry | Gwynedd | 1875–1899 |
Record created: 30 August 2026 · Last researched: 30 August 2026