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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6374735
    Disgrifiad
    Volume 1, Figure 3: Map showing 'The solid geology of Cardiganshire and the adjacent sea floor'.
    Enw Casgliad
    CCH - Cardiganshire County History Collection
    Cyfrwng
    Cartographic.
    Cychwynnwr
    RCAHMW