Llechwedd Slate Caverns: HomeWe look forward to welcoming you to Llechwedd Slate Caverns where history and . The NEW deep mine tour at Llechwedd tells the story of the men who built this . of human beings, its colossal success did not come without great sace …ohrigstad slate quarry tel no,ohrigstad slate quarry tel no,Contact Us | Welsh SlateWelsh Slate Penrhyn Quarry Bethesda Bangor Gwynedd LL57 4YG. Email: enquirieswelshslate. Tel: +44 (0) 1248 600656. Welsh Slate EUROPE is our.
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