Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Ty Mawr West - 141m
Nantlle Vale - 141m
Ty'n y Weirglodd - 199m
Twll John Fowc - 282m
Gwernor - 446m
Plas Du - 498m
Tanrallt - 526m
Twll Coed - 588m
Singrig - 606m
Gwernor - 626m
Cornwall - 751m
Twll Llwyd - 779m
Coed Madog - 787m
Cloddfa'r Coed - 888m
Fronlog - 920m
Taldrwst - 982m
Dorothea - 984m
Pwll Fanog - 1,019m
Tal y Sarn - 1,052m
Nant y Fron - 1,115m
Gallt y Fedw - 1,236m
Blaen y Cae - 1,298m
Twll Balast - 1,313m
Allt Llechi - 1,339m
Tyddyn Agnes - 1,456m
Cloddfa Lon Twll Mawr - 1,491m
Ty'n y Llwyn - 1,595m
Cilgwyn - 1,621m
Wern Ifan - 1,647m
Pen y Bryn - 1,773m
Bryn Castell - 1,894m