Site landscaped. Was first quarry in area to have steam engine.
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Pwll Fanog - 183m
Coed Madog - 219m
Tal y Sarn - 302m
Cornwall - 341m
Allt Llechi - 582m
Blaen y Cae - 663m
Gallt y Fedw - 689m
Dorothea - 690m
Ty Mawr West - 764m
Twll John Fowc - 805m
Nantlle Vale - 836m
Ty'n y Weirglodd - 844m
Plas Du - 865m
Ty Mawr Green - 888m
Tanrallt - 896m
Gwernor - 939m
Cilgwyn - 965m
Singrig - 989m
Gwernor - 1,078m
Twll Balast - 1,105m
Twll Coed - 1,236m
Cloddfa Lon Twll Mawr - 1,257m
Pen y Bryn - 1,322m
Twll Llwyd - 1,374m
Taldrwst - 1,381m
Wern Ifan - 1,437m
Fronlog - 1,496m
Nant y Fron - 1,515m
Ty'n y Llwyn - 1,610m
Pen yr Orsedd - 1,721m
Tyddyn Agnes - 1,728m
Bryn Castell - 1,811m