Small pit with cutting and possible wheelpit.
Unmechanised working that produced 160 tons in 1883 with 7 men working.
Publications (6)
- Gwyn, David, (2015); Welsh Slate: archaeology and history of an industry; Royal Commission on the Ancient and Historical Monuments of Wales; 9781871184518
- Jones, Gwynfor P., Richards, Alun J. (2004); Cwm Gwyrfai; pp.99-101; Gwasg Carreg Gwalch ISBN 0-86381-897-8
- Lindsay, Jean (1974); History of the North Wales Slate Industry; David & Charles; pp.312; ISBN 0-71536-264-X
- Richards, Alun J. (2013); Slate Quarrying in Wales; Gwasg Carreg Gwalch; ISBN 1-84527-026-6
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
- Richards, Alun John, (1999); The Slate Regions of North and Mid Wales and their Railways; Gwasg Carreg Gwalch; 0863815603
