MineArchiveCwmdwyfor Mine Company Ltd
The company that worked the Cwm Dwyfor copper and lead mine at the head of Cwm Pennant in the 1870s, paying a royalty to the New Prince of Wales Slate Company; its plant was sold at auction in November 1879.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Cwm Dwyfor Mine | Gwynedd | 1873–1879 |
Record created: 20 October 2026 · Last researched: 20 October 2026