EntityQ3401399· pop 10· linked from 94 articlesLlyn CelynSign in to savereservoir lake in WalesConnectionsAfon TrywerynEntityWalesEntityLiverpoolEntitygeographic coordinate systemEntityInternational Standard Book NumberEntityWelshEntityBBCConceptWayback MachineEntitydrainage basinEntityChesterEntityreservoirEntityParliament of the United KingdomEntityhydroelectricityEntitybody of waterEntitymember of parliamentEntityGwyneddEntityPlaid CymruEntityraftingEntitysustainable energyEntitySnowdoniaEntityCategoriesDee catchmentHydroelectric power stations in WalesLlandderfelLlanycilReservoirs in GwyneddReservoirs in SnowdoniaRiver Dee, WalesRiver regulation in GwyneddRiver regulation in Snowdonia