Amey Roadstone Corporation

The roadstone group that ended up owning the closed Porth y Nant quarry and its village, and which sold the property to Ymddiriedolaeth Nant Gwrtheyrn for £25,000 in July 1978 after a six-year campaign, making the language centre possible.

Mines operated

Mine	Region	Years
Nant Gwrtheyrn Quarries	Gwynedd	?–1978

Record created: 3 September 2026 · Last researched: 3 September 2026