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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Slide of RCAHMW colour oblique aerial photograph of Big Pit Coal Mine, Blaenavon, taken by C.R. Musson, 11/5/1990.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN433TeitlPwll Mawr Pwll Glo, BlaenafonMath O SaflePWLL GLOCasgliadau286Delweddau242