Sunday 19 January 2020

Penrhyn Quarry and Oakeley Quarry

The Penrhyn Quarry and Oakeley Quarry, both in Gwynedd, were respectively the world's largest slate quarry and the world's largest slate mine at the end of the 19th century. The former was served by the now defunct Penrhyn Quarry Railway, and the latter by the Ffestiniog Railway, which still operates for tourists.


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