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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    RCAHMW colour oblique aerial photograph of Tanygrisiau Pumped Storage Station and Reservoir. Taken on 25 January 2007 by Toby DriverFurther Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN401209TeitlFfestiniog Pumped Storage Scheme: Ffestiniog Power Station, TanygrisiauMath O SafleGORSAF BŴER TRYDAN-DŴRCasgliadau10Delweddau5