Pit accessed by drainage adit.
Publications (2)
- Down, C.G.; NMRS (1980); British Mining 14 - Manganese Mines of North Wales, The; ISBN 0 901450 17 0; pp.26-28,52,63.
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
