travelslate mine tour walesShare on FacebookShare on Twitter297IMAGESCwmorthin slate mine Wales October 2016Welsh slate mines join Grand Canyon, Taj Mahal and Great Wall of China as UNESCO World HeritageExploring Dinorwic a Historic Slate Mine in North WalesWelsh area known as the 'capital' of the country's slate mines nominated for world heritageSlate mining landscape of Wales nominated for Unesco World Heritage Site statusSlate MineVIDEOAberllefenni Slate Quarry [Foel Grochan] PART 2
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