Two pits and adit.**
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Pompren
Slate Quarry
Worked from 1840s
Jan 1st, 2024 from GWSI by Buddle-Bot
| North Wales | |
| Dolwyddelan | |
| 53.049135, -3.9020149 | |
| SH 7260 5190 | |
| Private Land | |
| 190m | |
| #1,327 |
Chwarel Ddu - 527m- Llan - 876m
- Ystumiau - 1,028m
- Chwarel Sion Jones - 1,138m
- Adwy'r Dwr - 1,559m
- Ty'n y Bryn - 1,608m
- Penllyn - 1,847m
- Prince Llewelyn - 1,991m