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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6429333
    Disgrifiad
    Deep adit mouth (No3 level), from the N, alongside valley road, Bwlchglas Mine.
    Enw Casgliad
    Investigators' Photographs
    Cyfrwng
    Photo.
    Cychwynnwr
    Stephen R. Hughes
    Dyddiad
    1997-09-21