NPRNTeitlMath O SaflePerthynasNPRN404539TeitlTraeth Bach Railway Viaduct, Cambrian Coast Line, LlandecwynMath O Saflen/aPerthynasAssociated withNPRN409346TeitlPen-Trwyn-Garnedd Quay, Dwyryd River NavigationMath O Saflen/aPerthynasConsists ofNPRN91427TeitlCemlyn Canal, Dwyryd River Navigation, MaentwrogMath O Saflen/aPerthynasAssociated withNPRN409347TeitlBryn-Mawr Slate Quay, Dwyryd River Navigation, MaentwrogMath O Saflen/aPerthynasConsists ofNPRN95498TeitlTyddyn Isa Quay, Dwyryd River NavigationMath O Saflen/aPerthynasConsists ofNPRN24191TeitlMaentwrog Bridge;Pont Maentwrog, MaentwrogMath O Saflen/aPerthynasAssociated withNPRN91425TeitlCemlyn Quay, Dwyryd River Navigation, MaentwrogMath O Saflen/aPerthynasConsists ofNPRN34291TeitlGelli-Grin Slate Quay, Dwyryd River NavigationMath O Saflen/aPerthynasConsists ofNPRN409348TeitlSlate Quay, Cei-NewyddMath O Saflen/aPerthynasConsists of
