Pen yr allt is better described as a large set of workings , these mostly consisted of many adits & open stopes . Some shafts were sunk which lead into more complex workings, but these shafts have been filled in.
The Pen-yr-Allt Shaft is sunk to the number 1 level. A large area of spoil on the surface mark the location of Pen-yr-allt.
In later years, worked as part of Griffin Mine.
| Year | Activity |
|---|---|
| 1838 | Busy at work with about 20 men at work. Jones & Barnsby. |
| 1850-53 | Worked by John Prosser. |
| 1853-60 | With addition of J.Y. Watson, comany launched - The Willoughby Lead Mining Company. |
| 1878-1885 | The South D’Eresby Mountain Mining Company |
| 1896 | Acquired by Brunner Mond. |
No major workings to explore .
External Links
Publications (1)
- Bennet & Vernon (1993); Mines of the Gwydyr Forest, Book 5 - Coed Mawr Pool, Cyffty and other mines in South Gwydyr
