Italy
Clogau Quarry (also known as the Berwyn Slate Quarry) is a quarry which is a Site of Special Scientific Interest located in Denbighshire, Wales. It supports the Llangollen canal, along with the Oernant Quarry. The quarry is used for hearths, worktops, tombstones and billiard tables.
Listen to the audio guide for Clogau Quarry Free on WIP — starts by itself when you arrive, even with the screen off