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    Manylion
    Delweddau
    Safleoedd Cysylltiedig
    Archifau Cysylltiedig
    NPRN275873
    Cyfeirnod MapSS69SW
    Cyfeirnod GridSS6100091800
    Awdurdod Unedol (Lleol)Swansea
    Hen SirGlamorgan
    CymunedMumbles
    Math O SaflePWLL GLO
    Cyfnod17eg Ganrif, Ôl-Ganoloesol
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    Disgrifiad
    Large area of earthworks from bell pits and deeper shafts developed from the seventeenth to nineteenth centuries, and especially after the opening of the Oystermouth Railway in the valley in 1804. Situated in the Clyne Valley County Park.
    (Source: Collieries of Wales, RCAHMW)
    B.A.Malaws, RCAHMW, 24 May 2011.
    Adnoddau
    LawrlwythoMathFfynhonnellDisgrifiadapplication/pdfBMA - Black Mountains Archaeology CollectionReport from an Archaeological Landscape Monument Survey for Clyne Valley Shaft Mounds, Swansea, carried out by Black Mountains Archaeology in 2020. Report No. 188.