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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6428985
    Disgrifiad
    Roof of tunnel to right and rebuilt Great Workhouse wall to left, White Rock Copper Works.
    Enw Casgliad
    Investigators' Photographs
    Cyfrwng
    Photo.
    Cychwynnwr
    Stephen R. Hughes
    Dyddiad
    1993-01-01