Blaenau Ffestiniog, Italy
Diphwys Casson quarry (sometimes known as Diphwys quarry or Diffwys quarry) was a major slate quarry in the town of Blaenau Ffestiniog, Gwynedd, North Wales. It was one of the major users of the Ffestiniog Railway.
Listen to the audio guide for Diphwys Casson Quarry Free on WIP — starts by itself when you arrive, even with the screen off