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    NPRN33605
    Map ReferenceSH63NE
    Grid ReferenceSH6541039520
    Unitary (Local) AuthorityGwynedd
    Old CountyMerioneth
    CommunityMaentwrog
    Type Of SiteHYDROELECTRIC POWER STATION
    PeriodModern, 20th Century
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    Description
    Constructed in 1928 by Sir Alexander Gibb and Partners for the North Wales Power Co. Ltd., the Maentwrog station was powered by a hydro-electric scheme which included dams at Maentwrog, Trawsfynydd and Gyfynys.

    G.M. Edwards, RCAHMW, 03/05/2007.