Open questions: Denbighshire

Where sources disagree, MineArchive keeps both accounts rather than picking one; where a fact could not be settled, the record says so. 1 such claims on 1 records. All regions.

Deeside and Moelfferna Quarries

• Wikipedia gives 1947 for the closure of the enterprise; the Royal Commission's record says the Moel Fferna mine closed in 1960. (disputed)