MineArchiveAbergynolwyn Slate & Slab Company Limited
Formed in 1911 by the Liberal MP Henry Haydn Jones to buy and reopen Bryn Eglwys quarry after its 1909 closure, working it through to the fatal 1946 collapse.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Bryn Eglwys Quarry | Gwynedd | 1911–1946 |
Record created: 30 August 2026 · Last researched: 30 August 2026