Small pit working red slate.
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Twll Goch
Slate Quarry
Jan 1st, 2024 from GWSI by Buddle-Bot
| North Wales | |
| Llanberis | |
| 53.119741, -4.1511712 | |
| SH 5614 6023 | |
| Open Access | |
| 300m | |
| #1,250 |
Bwlch y Groes - 205m- Caerbanciau - 236m
- Cook & Ddol - 380m
- Glynrhonwy Upper - 434m
- Cambrian - 468m
- Glynrhonwy Lower - 638m
- Cefn Ddu - 658m
- Donnen Las - 906m
- Chwarel Fawr - 960m
- Brynmawr - 967m
- Goodmans - 1,125m
- Glynrhonwy - Bomb Store - 1,158m
- Moel Eilio - 1,788m
- Boundary - 1,800m
- Ladas - 1,868m
- Pen Llyn - 1,977m