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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Colour digital photographic survey of Pen-y-carreg Dam Valve Tower, Elan Valley Water Scheme, comprising 1 image, by Stephen Hughes, 07/05/2004.Further Information
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    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN261210TeitlPen-y-Garreg Dam Valve Tower, Elan Valley Water SchemeMath O SafleTŴR Y FALFIAUCasgliadau26Delweddau17