NPRNTeitlMath O SaflePerthynasNPRN34557TeitlFourteen Locks, Crumlin Branch, Monmouthshire CanalMath O Saflen/aPerthynasConsists ofNPRN34561TeitlHafodyrynys ReservoirMath O Saflen/aPerthynasConsists ofNPRN85169TeitlPen-Sarn Limekiln, RogerstoneMath O Saflen/aPerthynasAssociated withNPRN34563TeitlPont-y-Waun; Nant Carn Aqueduct, Monmouthshire Canal, AbercarnMath O Saflen/aPerthynasConsists ofNPRN85125TeitlMonmouthshire CanalMath O Saflen/aPerthynasPart of