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    Manylion
    Delweddau
    Safleoedd Cysylltiedig
    Archifau Cysylltiedig
    NPRN505684
    Cyfeirnod MapSH55NE
    Cyfeirnod GridSH5564359712
    Awdurdod Unedol (Lleol)Gwynedd
    Hen SirSir Gaernarfon
    CymunedWaunfawr
    Math O SafleMWYNGLAWDD PRAWF
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    Disgrifiad
    A trial mine level located adjacent to the south end of Bryn-mawr quarry (NPRN 400669). It measures roughly 50m long by 4m-6m wide by 3m deep. The site is marked on both the OS 1st Edition and current mapping. P.J. Schofield, OANorth, 13th June 2007