Llechwedd Slate Caverns
Llechwedd Slate Caverns is a visitor attraction in Blaenau Ffestiniog, North Wales. Visitors can travel on the Miners Tramway or descend into the Deep Mine, via a funicular railway, to explore the former Llechwedd slate quarry, learn how slate was extracted and processed and about the lives of the miners.
On the Miners Tramway (opened in 1972) visitors ride for 800 metres through tunnels and caverns on a train hauled by a battery-electric locomotive.
The Deep Mine (opened in 1979) is accessed by Britain's steepest passenger railway, with a gradient of 1:1.8 or 30°. In its vast chambers, from which the rock has been extracted, sound and light is used to tell the story of the mine and mining.
Llechwedd Slate Caverns have been listed as one of the top ten places to visit by North Wales Tourism, the Tourism Board for this area.