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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN309541TeitlGarreg-Ddu Reservoir, Elan Valley Water SchemeMath O SafleCRONFA DDŴRCasgliadau21Delweddau14
    NPRN32534TeitlPen-y-Garreg Dam; Pen-y-Gareg Dam, Elan Valley Water SchemeMath O SafleARGAECasgliadau52Delweddau35
    NPRN752TeitlGarreg-Ddu Dam, Elan Valley Water Scheme;Carreg Ddu Viaduct and Submerged DamMath O SafleARGAECasgliadau55Delweddau37
    NPRN401413TeitlCray Reservoir, Swansea Corporation Water WorksMath O SafleCRONFA DDŴRCasgliadau12Delweddau5
    NPRN401212TeitlLlyn Cwmystradllyn (Reservoir)Math O SafleLLYNCasgliadau15Delweddau3
    NPRN309636TeitlClaerwen Reservoir, Elan Valley Water SchemeMath O SafleCRONFA DDŴRCasgliadau24Delweddau8
    NPRN309537TeitlPen-y-Garreg Reservoir, Elan Valley Water SchemeMath O SafleCRONFA DDŴRCasgliadau25Delweddau22