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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 Garreg Ddu Dam, Bridge Pier and culvert outlet, taken September 1898.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN309541TeitlGarreg-Ddu Reservoir, Elan Valley Water SchemeMath O SafleCRONFA DDŴRCasgliadau21Delweddau14
    NPRN752TeitlGarreg-Ddu Dam, Elan Valley Water Scheme;Carreg Ddu Viaduct and Submerged DamMath O SafleARGAECasgliadau55Delweddau37