NPRNTeitlMath O SaflePerthynasNPRN505588TeitlChwarel Fawr, Tramway IVMath O Saflen/aPerthynasConsists ofNPRN505748TeitlFfridd-Glyn, Tramway IIMath O Saflen/aPerthynasConsists ofNPRN400674TeitlCook and Ddol Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN505737TeitlCook and Ddol Slate Quarry, Inclined Plane IMath O Saflen/aPerthynasConsists ofNPRN505739TeitlCook and Ddol Slate Quarry, Inclined Plane IIMath O Saflen/aPerthynasConsists ofNPRN400672TeitlBwlch-y-Groes Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN505706TeitlPen-y-Bwlch, Winder HouseMath O Saflen/aPerthynasConsists ofNPRN505725TeitlChwarel Cefn Du, Inclined Plane IMath O Saflen/aPerthynasConsists ofNPRN505759TeitlChwarel Cefn Du, Winder House IIMath O Saflen/aPerthynasConsists ofNPRN505742TeitlFfridd-Glyn, Tramway IMath O Saflen/aPerthynasConsists ofNPRN505682TeitlBryn-Mawr, TramwayMath O Saflen/aPerthynasConsists ofNPRN505753TeitlFfridd-Glyn, Tramway IIIMath O Saflen/aPerthynasConsists ofNPRN505711TeitlChwarel Cefn Du, Tramway Tunnel PortalMath O Saflen/aPerthynasConsists ofNPRN505756TeitlChwarel Cefn Du, Inclined Plane IIMath O Saflen/aPerthynasConsists ofNPRN505714TeitlPen-y-Bwlch, Inclined PlaneMath O Saflen/aPerthynasConsists ofNPRN505738TeitlFfridd-Glyn, Winder HouseMath O Saflen/aPerthynasConsists ofNPRN505726TeitlChwarel Bwlch-y-Groes, TramwayMath O Saflen/aPerthynasConsists ofNPRN505736TeitlCook and Ddol Slate Quarry, Winder HouseMath O Saflen/aPerthynasConsists ofNPRN40556TeitlGlyn Rhonwy Quarry Winding HseMath O Saflen/aPerthynasConsists ofNPRN400670TeitlFfridd-Glyn Slate Quarry; Cambrian Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN400668TeitlChwarel Fawr Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN505740TeitlFfridd-Glyn, Inclined PlaneMath O Saflen/aPerthynasConsists ofNPRN400669TeitlBryn-Mawr Slate Quarry IMath O Saflen/aPerthynasAssociated withNPRN400667TeitlChwarel Cefn-Du Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN400671TeitlCae'r-Meinciau Slate QuarryMath O Saflen/aPerthynasAssociated withNPRN505724TeitlChwarel Cefn Du, Winder House IMath O Saflen/aPerthynasConsists ofNPRN505713TeitlChwarel Cefn Du, TramwayMath O Saflen/aPerthynasConsists of
