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    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleArchifauDelweddauNPRN91572TeitlRheidol Hydro-Electric SchemeMath O SafleGORSAF BŴER TRYDAN-DŴRArchifau7Delweddau0NPRN408885TeitlDinorwig Pumped-Storage Hydro-Electric Power Station;Electric Mountain, LlanberisMath O SafleGORSAF BŴER TRYDAN-DŴRArchifau62Delweddau53NPRN268169TeitlRheidol Hydro-Electric Scheme: Nant-y-Moch Reservoir and DamMath O SafleCRONFA DDŴRArchifau57Delweddau31NPRN308060TeitlTrysglwyn Wind Farm, RhosybolMath O SafleFFERM WYNTArchifau7Delweddau4NPRN306315TeitlFfestiniog Pumped Storage Scheme: Llyn Stwlan ReservoirMath O SafleCRONFA DDŴRArchifau22Delweddau21