Deeside and Moelfferna Quarries
Denbighshire, United Kingdom · built 1870
The Deeside and Moelfferna quarries were neighbouring slate quarries, near Glyndyfrdwy in North Wales. They were both operated by the same company throughout their history, and were both connected by the Deeside Tramway to the Llangollen and Corwen Railway.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).