Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'

Llyn Cwmystradllyn (Reservoir)

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NPRN401212
Cyfeirnod MapSH54SE
Cyfeirnod GridSH5619044470
Awdurdod Unedol (Lleol)Gwynedd
Hen SirSir Gaernarfon
CymunedDolbenmaen
Math O SafleLLYN
CyfnodCyfredinol
Disgrifiad
Natural lake, portrayed on OS County series (Caernarvon. XXVII.16 1889): a c.220m dam across the SW outfall has raised the level of the lake.
RCAHMW AP96-CS 0828-30
J.Wiles 09.09.04