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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    RCAHMW colour oblique photograph of Merthyr Tramroad Tunnel. Taken by Toby Driver on 28/11/2012.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN34853TeitlPlymouth Ironworks: Railway Tunnel;Trevithick's Tunnel, Merthyr Tramroad, Merthyr TydfilMath O SafleTWNNEL RHEILFFORDDCasgliadau8Delweddau3