Small pits.
Publications (4)
- le Neve Foster, C. (1896); Mines & Quarries Report-North Wales; 57 pages
- Lindsay, Jean (1974); History of the North Wales Slate Industry; David & Charles; pp.329; ISBN 0-71536-264-X
- 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; 0863815979
