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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Digital colour photograph of Llyn Cwm-Byr platform taken on 19/07/2006 by R.P. Sambrook during the Plynlimon Glaslyn South Upland survey undertaken by Trysor.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN289610TeitlLlyn Cwm-Byr, PlatformMath O SafleLLWYFANCasgliadau2Delweddau2