At altitude of 1700’ above the Stwlan reservoir on Moelwyn Mawr. Number of adits with dangerous internal shafts (fatalities during mid 1990’s). Adits currently gated.**
External Links
Publications (3)
- (1994); CATMHS - Newsletter 038-April; 40 pages
- Anon; Buarth Melyn and Moelwyn Slate Quarry; 1 pages
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
