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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    RCAHMW colour slide oblique aerial photograph of Big Pit Coal Mine, Blaenavon, taken on 24/07/1998 by Toby DriverFurther Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN433TeitlPwll Mawr Pwll Glo, BlaenafonMath O SaflePWLL GLOCasgliadau286Delweddau242