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    NPRN85523
    Map ReferenceSO00NE
    Grid ReferenceSO0894007020
    Unitary (Local) AuthorityCaerphilly
    Old CountyGlamorgan
    CommunityDarran Valley
    Type Of SiteRESERVOIR
    PeriodPost Medieval
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    Description
    Twyn-y-waun Pond.

    A reservoir.

    Part of the Dowlais Free Drainage System.