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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Photograph showing Berthlwyd Mine Office and main adit, taken by John Latham, 2002.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig