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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    RCAHMW colour oblique photograph of Caer y Twr hillfort, Holyhead Mountain, Roman watch tower. Taken by Toby Driver on 13/01/2012.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN308080TeitlCaer-y-Twr Roman Building, Holyhead MountainMath O SafleTŴR GWYLIOCasgliadau8Delweddau2