Partly underground working.*
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Jan 1st, 2024 from GWSI by Buddle-Bot![]()
| North Wales | |
| Trefriw | |
| 53.123184, -3.8813714 | |
| SH 7420 6010 | |
| Private Land | |
| 300m | |
| #1,344 |
Partly underground working.*
Cornel - 491m
Clogwyn William - 779m
Cynllyd - 897m
Bwlch Geuallt - 920m
Tal y Llyn - 1,505m
Tal y Llyn Mine - 1,695m