Early open workings followed by extensive underground workings.****
External Links
Publications (17)
- (1991); CATMHS - Newsletter 031-November; 31 pages
- (1992); CATMHS - Newsletter 032-May; 37 pages
- (1995); CATMHS - Newsletter 043-July; 48 pages
- (1996); CATMHS - Newsletter 045-January; 36 pages
- (1996); CATMHS - Newsletter 047-August; 30 pages
- (2000); CATMHS - Newsletter 060-June; 20 pages
- (2001); CATMHS - Newsletter 063-April; 39 pages
- (2002); CATMHS - Newsletter 068-July; 23 pages
- (2005); CATMHS - Newsletter 078-February; 34 pages
- Eade, Sara (2010); Ratgoed A Study In Slate. Sara Eade. ISBN: 9780956565204
- Gwyn, David, (2015); Welsh Slate: archaeology and history of an industry; Royal Commission on the Ancient and Historical Monuments of Wales; 9781871184518
- Lindsay, Jean (1974); History of the North Wales Slate Industry; David & Charles; pp.329; ISBN 0-71536-264-X
- Richards, Alun J. (2004); Slate Quarrying at Corris; pp.95; Gwasg Carreg Gwalch; ISBN 1-84524-068-5
- 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; 0863815983
- Roberts, David (2009); Ratgoed Slate Mine; 22 pages

