Carnglaze Slate Caverns

Carnglaze Slate Caverns are the only slate quarry in Cornwall set near St. Neot in the valley of the River Loveny, a tributary of the River Fowey, in the middle of Liskeard and Bodmin.
It has been worked for over 500 years, especially in the 18th and 19th century. The slate is mainly used for roofing and flooring in buildings, and it has a blue colour different from other slates of Cornwall, which are greyer.
This place is occasionally used for concerts and can seat 300 people.
At the end of the visit, the tourist guide told us that most of the slate in the area is from Spain, even the slate on the roof of the ticket hut. I was surprised and I asked the reason why and they told me that the Spanish slate was probably cheaper.
You can find more information at its web page and see more photos at the gallery.