Llechwedd Slate Caverns is a visitor attraction near Blaenau Ffestiniog, Gwynedd, Wales. It details the history of slate quarrying in the town and specifically the Llechwedd quarry in which it is located. It has an interpretive centre which shows how slate was extracted and processed, a reconstructed village which shows how miners lived, and a funicular railway which takes visitors into abandoned sections of the quarry.