NPRNTeitlMath O SaflePerthynasNPRN34843TeitlGlyncorrwg Mineral Railway: Cefn Morfydd Summit LevelMath O Saflen/aPerthynasAssociated withNPRN34841TeitlGlyncorrwg Mineral Railway: Cefn Morfydd InclineMath O Saflen/aPerthynasAssociated withNPRN309293TeitlGlyncorrwg Railway, Overbridge;Parsons FollyMath O Saflen/aPerthynasAssociated withNPRN34839TeitlGlyncorrwg Mineral Railway: North-Western TerminalMath O Saflen/aPerthynasAssociated withNPRN34840TeitlGlyncorrwg Mineral Railway;Parsons' FollyMath O Saflen/aPerthynasAssociated withNPRN34844TeitlGlyncorrwg Mineral Railway: Cwm Pelenna BridgeMath O Saflen/aPerthynasAssociated withNPRN309298TeitlGlyncorrwg Railway. Penlan-Fach Bridge;Parsons FollyMath O Saflen/aPerthynasAssociated withNPRN309291TeitlGlyncorrwg Railway, Rock Cutting; Parsons FollyMath O Saflen/aPerthynasAssociated withNPRN309297TeitlGlyncorrwg Railway, Winding HouseMath O Saflen/aPerthynasAssociated withNPRN309288TeitlGlyncorrwg Railway, Embankment;Parsons FollyMath O Saflen/aPerthynasAssociated withNPRN34842TeitlGlyncorrwg Mineral Railway;Parsons Folly: Cefn Morfydd Incline on WallMath O Saflen/aPerthynasAssociated with
