Underground.*
Publications (6)
- Isherwood, J.G. (1984); Wynne Public Tour Plan; 1 pages
- Isherwood, J.G. (1984); Wynne Slate Quarry, The; 37 pages
- Isherwood, J.G. (2008); Wynne Quarry Vertical Cross Section; 1 pages
- Isherwood, J.G. (2008); Wynne Quarry- conjectural development; 4 pages
- le Neve Foster, C. (1896); Mines & Quarries Report-North Wales; 57 pages
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968