Two pits joined by short tunnel.
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![]()
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| North Wales | |
| Y Fron | |
| 53.0705555, -4.2186213 | |
| SH 5145 5489 | |
| Open Access | |
| 300m | |
| #1,411 | |
Two pits joined by short tunnel.

Braich Rhyd - 253m
Pretoria - 314m
Braich - 547m
Crown - 741m
Brynfferam - 926m
Moeltryfan - 1,008m
Pen yr Orsedd - 1,066m
Alexandra - 1,380m
Pen y Bryn - 1,451m
Wern Ifan - 1,555m
Cloddfa Lon Twll Mawr - 1,695m
Cilgwyn - 1,828m
Twll Balast - 1,870m
Trial Level (Mynydd Mawr) - 1,911m