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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Oblique aerial photograph of Bwlch Oerddrws anti-tank blocks taken during the Royal Commission’s programme of archaeological aerial reconnaissance by Toby Driver on 17th January 2022Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN270350TeitlBwlch Oerddrws, Anti invasion defencesMath O SafleBLOC GWRTH-DANCIAUCasgliadau10Delweddau7