Underground workings.*
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Cwm Breichiau
Slate Mine
Jan 1st, 2024 from GWSI by Buddle-Bot
| North Wales | |
| Pantperthog | |
| 52.621047, -3.9099892 | |
| SH 7080 0430 | |
| Open Access | |
| 290m | |
| #1,667 |
Darren - 1,938m- Bryn Eglwys - 1,988m