EntityQ3397946· pop 6· linked from 18 articlesLlyn CwellynSign in to savereservoir lake in Gwynedd, WalesConnectionsWalesEntityMiddle AgesEntitygeographic coordinate systemEntitydigital object identifierEntitydrinking waterEntitydrainage basinEntityreservoirEntityAngleseyEntitybody of waterEntityQ180686EntitymoraineEntityGwyneddEntityQ428829EntitySnowdonEntityU-shaped valleyEntityArctic charEntitySnowdoniaEntityPorthmadogEntityCardigan BayEntitycryptosporidiosisEntityCategoriesBetws GarmonOligotrophic lakesReservoirs in GwyneddReservoirs in SnowdoniaTourist attractions in GwyneddTourist attractions in Snowdonia