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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6025492
    Disgrifiad
    Archaeological survey for Benallt Iron and Manganese Mine, Aberdaron, incorporating Rhiw and Ty Canol mines carried out by Wardell Armstrong Consultants.
    Enw Casgliad
    Additional Information
    Cyfrwng
    Text, Cartographic, Graphic.
    Cychwynnwr
    A. Josephs
    Dyddiad
    1992-11