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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Interior of Mill floor tunnel from incline to dressing mill.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN400427TeitlMaenofferen Slate Mine, Blaenau Ffestiniog (Maen-Offeren; Maen y Fferem; Maen Offeren)Math O SafleCHWAREL LECHICasgliadau146Delweddau136
    NPRN415934TeitlMill Floor Tunnel, Maenofferen Slate MineMath O SafleTWNNELCasgliadau2Delweddau2