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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6022380
    Disgrifiad
    Photographic site survey of Vivian Slate Quarry, inclines, Walia and associated structures, stage 3, post-construction photographs, pages 37 to 72, 7 of 8.
    Enw Casgliad
    Vivian Slate Quarry Survey
    Cyfrwng
    Photo.
    Cychwynnwr
    Gwynedd County Council
    Dyddiad
    1991