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    •    Hygyrchedd

    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6205363
    Disgrifiad
    Notes concerning Cwm Erch Copper Mine compiled by R. Carrington, P. Crew, G. Davies and M. C. Williams.
    Enw Casgliad
    Additional Information
    Cyfrwng
    Text, Photo.
    Dyddiad
    1979 to 1980