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    Raven Rock Slate Quarry

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    Manylion
    Delweddau
    Safleoedd Cysylltiedig
    Archifau Cysylltiedig
    NPRN420111
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    Disgrifiad
    The Raven Rock slate quarry was one of several distinct commercial workings, dating from 1787, that eventually made up the Dinorwic slate quarry complex (NPRN 40538).