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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Slide of RCAHMW colour oblique aerial photograph of Garreg Ddu Dam, taken by C.R. Musson, 13/10/1992.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN752TeitlGarreg-Ddu Dam, Elan Valley Water Scheme;Carreg Ddu Viaduct and Submerged DamMath O SafleARGAECasgliadau55Delweddau37
    NPRN261210TeitlPen-y-Garreg Dam Valve Tower, Elan Valley Water SchemeMath O SafleTŴR Y FALFIAUCasgliadau26Delweddau17