NPRNTitleType Of SiteArchivesImagesNPRN41296TitleFfestiniog Tunnel, Blaenau FfestiniogType Of SiteRAILWAY TUNNELArchives8Images6NPRN417355TitleRailway Siding and Wharf, Oakeley Slate QuarryType Of SiteRAILWAY SIDINGArchives1Images1NPRN85488TitlePant-yr-Afon Hydro Electric Power Station;Maenofferen Powerhouse, Blaenau FfestiniogType Of SiteHYDROELECTRIC POWER STATIONArchives28Images13NPRN415673TitleConwy Valley Line;Blaenau Ffestiniog Branch, London and North Western RailwayType Of SiteRAILWAYArchives9Images8
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