Publications (5)
- (2001); CATMHS - Newsletter 063-April; 39 pages
- (2003); CATMHS - Newsletter 071-May; 29 pages
- (2003); CATMHS - Newsletter 073-November; 26 pages
- (2012); CATMHS - Newsletter 107-May; 32 pages
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Tyn y Ceunant - 364m
Cwm Dylluan - 479m
Tap Ddu - 630m
Gaewern - 685m
Mynydd Tyn y Ceunant - 980m
Abercwmeiddaw - 1,014m
Afon Deri - 1,191m
Pen y Garreg - 1,285m
Braich Goch - 1,321m
Corris Mine Explorers - 1,436m
Abercorris (trial) - 1,453m
King Arthur's Labyrinth - 1,461m
Abercorris - 1,599m
Tarran Cadlan - 1,716m
Bryn Llwyd Uchaf - 1,761m
Dolffanog - 1,969m