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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Digital copy of an albumen print from Edward Hubbard Collection showing the Pen y Garreg upstream face culvert inlet and valve tower, taken May 1899.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN261210TeitlPen-y-Garreg Dam Valve Tower, Elan Valley Water SchemeMath O SafleTŴR Y FALFIAUCasgliadau26Delweddau17
    NPRN309537TeitlPen-y-Garreg Reservoir, Elan Valley Water SchemeMath O SafleCRONFA DDŴRCasgliadau25Delweddau22