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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    1 b/w photograph showing exterior of Dinorwig Power Station at start of construction; collated by the former Central Office of Information.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN408885TeitlDinorwig Pumped-Storage Hydro-Electric Power Station;Electric Mountain, LlanberisMath O SafleGORSAF BŴER TRYDAN-DŴRCasgliadau60Delweddau52