Pit and hillside. Had Blondin.
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Ty'n y Weirglodd - 141m
Ty Mawr Green - 141m
Nantlle Vale - 199m
Twll John Fowc - 315m
Plas Du - 411m
Tanrallt - 443m
Gwernor - 508m
Singrig - 537m
Twll Coed - 596m
Coed Madog - 650m
Cornwall - 664m
Gwernor - 698m
Cloddfa'r Coed - 764m
Twll Llwyd - 780m
Pwll Fanog - 905m
Fronlog - 920m
Taldrwst - 941m
Dorothea - 942m
Tal y Sarn - 950m
Nant y Fron - 1,079m
Gallt y Fedw - 1,169m
Blaen y Cae - 1,220m
Allt Llechi - 1,244m
Twll Balast - 1,302m
Tyddyn Agnes - 1,404m
Cloddfa Lon Twll Mawr - 1,481m
Ty'n y Llwyn - 1,506m
Cilgwyn - 1,547m
Wern Ifan - 1,644m
Pen y Bryn - 1,735m
Bryn Castell - 1,797m