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    NPRN421105
    Map ReferenceSO10SE
    Grid ReferenceSO1653803617
    Unitary (Local) AuthorityCaerphilly
    Old CountyMonmouthshire
    CommunityArgoed
    Type Of SiteCOLLIERY
    PeriodPost Medieval
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    Description
    Holly Bush colliery went into production in c1860. It had a upper and lower level. The colliery closed in 1921.

    Reference: www.welshcoalmines.co.uk

    RCAHMW, 2015.