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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6429487
    Disgrifiad
    Launder aqueduct piers and Conglog mill beyond, from NW, Conglog Slate Quarry complex.
    Enw Casgliad
    Investigators' Photographs
    Cyfrwng
    Photo.
    Cychwynnwr
    Stephen R. Hughes
    Dyddiad
    1996-09-01