NPRNTeitlMath O SaflePerthynasNPRN85502TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85651TeitlL.&.N.W.R. Cwm Bargoed BranchMath O Saflen/aPerthynasConsists ofNPRN85595TeitlRhaslas Pond, Overflow ChannelMath O Saflen/aPerthynasConsists ofNPRN85610TeitlGelli-Gaer Common, Spoil Heap on ..Math O Saflen/aPerthynasConsists ofNPRN85955TeitlNo.6 Pit (Dowlais) Engine HouseMath O Saflen/aPerthynasConsists ofNPRN85999TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85577TeitlRhaslas Pond, Spoil Heap W of..Math O Saflen/aPerthynasAssociated withNPRN85560TeitlFochrhiw Junction Signal BoxMath O Saflen/aPerthynasConsists ofNPRN85605TeitlRhaslas Pond, Overspill ChannelMath O Saflen/aPerthynasConsists ofNPRN85538TeitlCwm-Bargoed Pits; Cwm Bargoed PitsMath O Saflen/aPerthynasConsists ofNPRN85950TeitlLevel, Dowlais TipsMath O Saflen/aPerthynasConsists ofNPRN85938TeitlIncline Top, Level S of..Math O Saflen/aPerthynasConsists ofNPRN85957TeitlNo.2 Pit (Dowlais)Math O Saflen/aPerthynasConsists ofNPRN85902TeitlAir Shaft, N of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85619TeitlIsaac Morgan Pond, DamMath O Saflen/aPerthynasConsists ofNPRN85900TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85569TeitlRhaslas Pit: Spoil Heap S ofMath O Saflen/aPerthynasConsists ofNPRN85596TeitlRhaslas Pond, Dam (North)Math O Saflen/aPerthynasConsists ofNPRN85593TeitlRhaslas Pond, Filter HouseMath O Saflen/aPerthynasConsists ofNPRN85601TeitlRhaslas Pond, Ironstone Workings N of..Math O Saflen/aPerthynasConsists ofNPRN85510TeitlTunnel Pits, TunnelMath O Saflen/aPerthynasConsists ofNPRN85899TeitlTon-y-Ffald Coal LevelMath O Saflen/aPerthynasConsists ofNPRN85958TeitlNo.2 Pit (Dowlais): ShaftMath O Saflen/aPerthynasConsists ofNPRN85564TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85976TeitlMerthyr Common, Drainage Ditch on ..Math O Saflen/aPerthynasConsists ofNPRN85932TeitlPwll-y-Hwyaid, Building E of..Math O Saflen/aPerthynasConsists ofNPRN85640TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85934TeitlG.W.&.Rhymney Joint Rly., Zig-Zag Branch, BridgeMath O Saflen/aPerthynasConsists ofNPRN85907TeitlPwll-y-Hwyaid, Limekiln E of..Math O Saflen/aPerthynasConsists ofNPRN85933TeitlSpoil Heap, E of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85554TeitlPant-y-Waun, Mineral RailwayMath O Saflen/aPerthynasConsists ofNPRN85969TeitlG.W.&.Rhymney Joint Rly. Taff-Bargoed Section, BridgeMath O Saflen/aPerthynasConsists ofNPRN85523TeitlTwyn-y-Waun Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85608TeitlDowlais Top - Bargoed RoadMath O Saflen/aPerthynasConsists ofNPRN85541TeitlTwyn-y-Waun, QuarryMath O Saflen/aPerthynasConsists ofNPRN85960TeitlMountain Hare, Leat E of..Math O Saflen/aPerthynasConsists ofNPRN85549TeitlPant-y-Waun Mineral RailwayMath O Saflen/aPerthynasConsists ofNPRN85612TeitlBrecon & Merthyr Rly., BridgeMath O Saflen/aPerthynasConsists ofNPRN85521TeitlRaslas Pond;Rhaslas Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85832TeitlTunnel Pits, Pits NW of..Math O Saflen/aPerthynasConsists ofNPRN85944TeitlMountain Hare Pit, Reservoir NE of..Math O Saflen/aPerthynasConsists ofNPRN85531TeitlTunnel Pits, South Engine HouseMath O Saflen/aPerthynasConsists ofNPRN85546TeitlRhaslas Houses, Quarry NW of..Math O Saflen/aPerthynasConsists ofNPRN85645TeitlDowlais Iron Co Rly.;L.&.N.W.R. Cwm Bargoed BranchMath O Saflen/aPerthynasConsists ofNPRN85941TeitlMountain Hare, Reservoir N of..Math O Saflen/aPerthynasConsists ofNPRN34084TeitlDowlais Ironworks, Merthyr TydfilMath O Saflen/aPerthynasConsists ofNPRN85986TeitlSoap Pit, Level W of..Math O Saflen/aPerthynasConsists ofNPRN85905TeitlAir Shaft, NW of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85977TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85626TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85512TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85607TeitlSpoil Heap E of Rhaslas PondMath O Saflen/aPerthynasConsists ofNPRN85988TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85978TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85631TeitlPenydarren;Ffos-y-Fran, InclineMath O Saflen/aPerthynasConsists ofNPRN85987TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85917TeitlNo.4 Pit (Dowlais): Air Shaft S of..Math O Saflen/aPerthynasConsists ofNPRN85634TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85981TeitlTre-Hir Pond, DamMath O Saflen/aPerthynasConsists ofNPRN85529TeitlTunnel Pits, North Engine HouseMath O Saflen/aPerthynasConsists ofNPRN85655TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85606TeitlRhaslas Pond, Spoil Heap NE of..Math O Saflen/aPerthynasConsists ofNPRN85609TeitlRhaslas Pond, Spoil Heap E of..Math O Saflen/aPerthynasConsists ofNPRN85898TeitlNo.7 Pit (Dowlais)Math O Saflen/aPerthynasConsists ofNPRN85632TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85519TeitlFour Feet Pit Engine HouseMath O Saflen/aPerthynasConsists ofNPRN85915TeitlLevel (1), NE of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85991TeitlPit, Merthyr CommonMath O Saflen/aPerthynasConsists ofNPRN85585TeitlPontlottyn - Cwm Bargoed RoadMath O Saflen/aPerthynasConsists ofNPRN85962TeitlNo.6 Pit (Dowlais), Air ShaftMath O Saflen/aPerthynasConsists ofNPRN85637TeitlDowlais Iron Works, Coal ChuteMath O Saflen/aPerthynasConsists ofNPRN85643TeitlDowlais Iron Co Rly.;L.&.N.W.R. Cwm Bargoed BranchMath O Saflen/aPerthynasConsists ofNPRN85636TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN86000TeitlDowlais Free Drainage System, AqueductMath O Saflen/aPerthynasConsists ofNPRN85504TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85961TeitlNo.1 Pit (Dowlais), Spoil HeapsMath O Saflen/aPerthynasConsists ofNPRN85574TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85527TeitlShepherd's Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85583TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85946TeitlMountain Hare, Reservoir E of..Math O Saflen/aPerthynasConsists ofNPRN33539TeitlTunnel CollieryMath O Saflen/aPerthynasConsists ofNPRN85918TeitlNo.4 Pit (Dowlais)Math O Saflen/aPerthynasConsists ofNPRN85923TeitlMountain Hare, Level NW of..Math O Saflen/aPerthynasConsists ofNPRN85525TeitlSoap Vein Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85517TeitlFour Feet Pit; Lower Four Feet PitMath O Saflen/aPerthynasConsists ofNPRN85540TeitlCwm-Bargoed Pits: Air ShaftMath O Saflen/aPerthynasConsists ofNPRN85966TeitlSpoil Heap (2), Dowlais TipsMath O Saflen/aPerthynasConsists ofNPRN85909TeitlPwll-y-Hwyaid, Level S of..Math O Saflen/aPerthynasConsists ofNPRN85614TeitlGelli-Gaer Common, Pit on ..Math O Saflen/aPerthynasConsists ofNPRN85926TeitlIncline Top, Level S of..Math O Saflen/aPerthynasConsists ofNPRN85901TeitlAir Shaft, NW of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85972TeitlNo.4 Pit, Dowlais: Spoil HeapMath O Saflen/aPerthynasConsists ofNPRN85964TeitlPits (2), Dowlais TipsMath O Saflen/aPerthynasConsists ofNPRN85633TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85940TeitlMountain Hare, Shaft N of..Math O Saflen/aPerthynasConsists ofNPRN85578TeitlRhaslas Pond, Pit W of..Math O Saflen/aPerthynasConsists ofNPRN85568TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85582TeitlFour Feet Pit, Ironstone Workings SW of..Math O Saflen/aPerthynasConsists ofNPRN85580TeitlFour Feet Pit, Spoil Heap SE of..Math O Saflen/aPerthynasConsists ofNPRN85627TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85702TeitlIsaac Morgan's Pit, Merthyr TydfilMath O Saflen/aPerthynasConsists ofNPRN85561TeitlCwm-Bargoed Pits, SmithyMath O Saflen/aPerthynasConsists ofNPRN85603TeitlPant-y-Waun Cottages, Drainage Ditch Near..Math O Saflen/aPerthynasConsists ofNPRN85908TeitlDowlais Rly., Water TankMath O Saflen/aPerthynasConsists ofNPRN85509TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85927TeitlIncline Top, Tramroad S of..Math O Saflen/aPerthynasConsists ofNPRN85952TeitlNo.1 Pit (Dowlais), ShaftMath O Saflen/aPerthynasConsists ofNPRN85912TeitlNo.2 Pit (Dowlais), Reservoir N of..Math O Saflen/aPerthynasConsists ofNPRN85953TeitlShaft, N of No.6 Pit, DowlaisMath O Saflen/aPerthynasConsists ofNPRN85937TeitlPits (1), Dowlais TipsMath O Saflen/aPerthynasConsists ofNPRN85985TeitlSoap Pit, Spoil Heap W of..Math O Saflen/aPerthynasConsists ofNPRN85547TeitlTwyn-y-Waun, Quarry East ofMath O Saflen/aPerthynasConsists ofNPRN85930TeitlPwll-y-Hwyaid HousesMath O Saflen/aPerthynasConsists ofNPRN85597TeitlRhaslas Pond, Pipeline N of..Math O Saflen/aPerthynasConsists ofNPRN85984TeitlSoap Pit, Adit W of..Math O Saflen/aPerthynasConsists ofNPRN85989TeitlPenydarren Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85558TeitlSoap Vein Pond, Shaft SW of..Math O Saflen/aPerthynasConsists ofNPRN85982TeitlDowlais Free Drainage System, ReservoirMath O Saflen/aPerthynasConsists ofNPRN85579TeitlRhaslas Pond, Spoil Heap W of..Math O Saflen/aPerthynasConsists ofNPRN85897TeitlDowlais Tips, Quarry At..Math O Saflen/aPerthynasConsists ofNPRN85528TeitlTunnel PitsMath O Saflen/aPerthynasConsists ofNPRN85604TeitlPant-y-Waun CottagesMath O Saflen/aPerthynasConsists ofNPRN85524TeitlTwyn-y-Waun Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85615TeitlGelli-Gaer Common, Leat 1Math O Saflen/aPerthynasConsists ofNPRN85935TeitlSpoil Heap, S of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85922TeitlMountain Hare, Reservoir NW of..Math O Saflen/aPerthynasConsists ofNPRN85910TeitlPwll-y-Hwyaid, Level S of..Math O Saflen/aPerthynasConsists ofNPRN85921TeitlNo.4 Pit (Dowlais), Reservoir SE of..Math O Saflen/aPerthynasConsists ofNPRN85947TeitlNo.2 Pit (Dowlais), Pits NE of..Math O Saflen/aPerthynasConsists ofNPRN85913TeitlPwll-y-Hwyaid, Shaft E of..Math O Saflen/aPerthynasConsists ofNPRN85506TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasAssociated withNPRN85943TeitlMountain Hare PitMath O Saflen/aPerthynasConsists ofNPRN85914TeitlLevel, E of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85599TeitlIsaac Morgan Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85896TeitlLevel, NE of Pwll-yr-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85948TeitlNo.2 Pit (Dowlais), Air Shaft E of..Math O Saflen/aPerthynasConsists ofNPRN85945TeitlMountain Hare Pit, Reservoir E of..Math O Saflen/aPerthynasConsists ofNPRN85939TeitlDowlais Rly., Incline Engine HouseMath O Saflen/aPerthynasConsists ofNPRN85514TeitlCwm-Bargoed Pits, TramroadMath O Saflen/aPerthynasConsists ofNPRN85594TeitlRhaslas Pond, Straining TowerMath O Saflen/aPerthynasConsists ofNPRN85837TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85649TeitlG.W.&.Rhymney Joint Rly. Taff-Bargoed Section Zig-Zag BranchMath O Saflen/aPerthynasConsists ofNPRN85518TeitlLevel, near Four Feet PitMath O Saflen/aPerthynasConsists ofNPRN85618TeitlTunnel Pits, Drainage Ditch E of..Math O Saflen/aPerthynasConsists ofNPRN85571TeitlRhaslas Pond, Dam (South)Math O Saflen/aPerthynasConsists ofNPRN85581TeitlDowlais Free Drainage System, ReservoirMath O Saflen/aPerthynasConsists ofNPRN85520TeitlRaslas PitMath O Saflen/aPerthynasConsists ofNPRN85998TeitlDowlais Free Drainage System, ReservoirMath O Saflen/aPerthynasConsists ofNPRN85994TeitlMerthyr Common, Drainage Ditch on ..Math O Saflen/aPerthynasConsists ofNPRN85616TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85630TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85592TeitlRhaslas Pond, Valve HouseMath O Saflen/aPerthynasConsists ofNPRN85971TeitlDowlais Tips, Road At..Math O Saflen/aPerthynasConsists ofNPRN85559TeitlG.W.&.Rhymney Joint Rly. Taff Bargoed SectionMath O Saflen/aPerthynasConsists ofNPRN85747TeitlIsaac Morgan's Pit, LeatMath O Saflen/aPerthynasConsists ofNPRN85951TeitlNo.1 Pit (Dowlais)Math O Saflen/aPerthynasConsists ofNPRN85553TeitlFochriw Pit Junction, Gravel PitMath O Saflen/aPerthynasConsists ofNPRN85652TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85919TeitlNo.4 Pit (Dowlais), Reservoir SE of..Math O Saflen/aPerthynasConsists ofNPRN85983TeitlTre-Hir Pond, Valve HouseMath O Saflen/aPerthynasConsists ofNPRN85598TeitlPantywaun Water Tank (Brecon & Merthyr Railway)Math O Saflen/aPerthynasConsists ofNPRN85741TeitlSoap PitMath O Saflen/aPerthynasConsists ofNPRN85644TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85624TeitlDowlais Rly.Math O Saflen/aPerthynasConsists ofNPRN85503TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85587TeitlRhaslas Pond, Ironstone Workings W of..Math O Saflen/aPerthynasConsists ofNPRN85931TeitlPwll-y-Hwyaid HousesMath O Saflen/aPerthynasConsists ofNPRN85956TeitlNo.6 Pit (Dowlais), ShaftMath O Saflen/aPerthynasConsists ofNPRN85928TeitlPwll-yr-Hwyiad Bridge (G.W.&.Rhymney Joint Rly. Zig-Zag Branch)Math O Saflen/aPerthynasConsists ofNPRN85586TeitlFour Feet Pit, Shaft SW of..Math O Saflen/aPerthynasConsists ofNPRN85591TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85530TeitlTunnel Pits, North ShaftMath O Saflen/aPerthynasConsists ofNPRN85611TeitlBrecon & Merthyr RailwayMath O Saflen/aPerthynasConsists ofNPRN85646TeitlDowlais Iron Co Rly.;L.&.N.W.R. Cwm Bargoed BranchMath O Saflen/aPerthynasConsists ofNPRN85936TeitlNo.2 Pit (Dowlais): Spoil HeapMath O Saflen/aPerthynasConsists ofNPRN85501TeitlBrecon & Merthyr RailwayMath O Saflen/aPerthynasConsists ofNPRN85505TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85911TeitlPwll-y-Hwyaid, Level SE of..Math O Saflen/aPerthynasConsists ofNPRN85980TeitlShaft, W of Tre-Hir PondMath O Saflen/aPerthynasConsists ofNPRN85588TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85550TeitlTunnel Pit HousesMath O Saflen/aPerthynasConsists ofNPRN85552TeitlFochriw Pit Junction Signal BoxMath O Saflen/aPerthynasConsists ofNPRN85990TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85625TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85638TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85997TeitlG.W.&.Rhymney Joint Rly., Taff Bargoed Section, Road Bridge Over..Math O Saflen/aPerthynasConsists ofNPRN85544TeitlAir Shaft, E of Rhaslas PondMath O Saflen/aPerthynasConsists ofNPRN85949TeitlNo.2 Pit (Dowlais), Reservoir E of..Math O Saflen/aPerthynasConsists ofNPRN85576TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85622TeitlDowlais Free Drainage System, ReservoirMath O Saflen/aPerthynasConsists ofNPRN85562TeitlCwm Bargoed StationMath O Saflen/aPerthynasConsists ofNPRN85513TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85508TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85959TeitlMountain Hare, Iron Ore Mine E of..Math O Saflen/aPerthynasConsists ofNPRN85545TeitlRhaslas Pond, Quarry E of..Math O Saflen/aPerthynasConsists ofNPRN85532TeitlTunnel Pits, South ShaftMath O Saflen/aPerthynasConsists ofNPRN85993TeitlMerthyr Common, Hut Circle on ..Math O Saflen/aPerthynasConsists ofNPRN85970TeitlG.W.&.Rhymney Joint Rly. Zig-Zag Branch, BridgeMath O Saflen/aPerthynasConsists ofNPRN85613TeitlBrecon & Merthyr Rly.Math O Saflen/aPerthynasConsists ofNPRN85647TeitlPen-y-Daren Pits Incline, (Pen-y-Daren Iron Co Rly.)Math O Saflen/aPerthynasConsists ofNPRN85924TeitlShaft, SW of Incline TopMath O Saflen/aPerthynasConsists ofNPRN85992TeitlDowlais Free Drainage System, DamMath O Saflen/aPerthynasConsists ofNPRN85904TeitlLevel, NW of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85542TeitlGelli-Gaer Common, Ironstone WorkingsMath O Saflen/aPerthynasConsists ofNPRN85995TeitlL.&.N.W.R. Cwm-Bargoed Branch, BridgeMath O Saflen/aPerthynasConsists ofNPRN85894TeitlNant Llechan, Spoil Heaps In..Math O Saflen/aPerthynasConsists ofNPRN85590TeitlDowlais Free Drainage System, ReservoirMath O Saflen/aPerthynasConsists ofNPRN85973TeitlDowlais Tips, Level At..Math O Saflen/aPerthynasConsists ofNPRN85920TeitlNo.4 Pit (Dowlais), Reservoir E of..Math O Saflen/aPerthynasConsists ofNPRN85635TeitlDowlais Iron Co TramroadMath O Saflen/aPerthynasConsists ofNPRN85573TeitlDowlais Free Drainage System, ReservoirMath O Saflen/aPerthynasConsists ofNPRN85648TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85584TeitlRhaslas Pond, Drainage Ditch W of..Math O Saflen/aPerthynasConsists ofNPRN85903TeitlPwll-y-Hwyaid, Tramroad NW of..Math O Saflen/aPerthynasConsists ofNPRN85563TeitlFochrhiw JunctionMath O Saflen/aPerthynasConsists ofNPRN85543TeitlPantywaun Signal BoxMath O Saflen/aPerthynasConsists ofNPRN85929TeitlMountain Hare - Dowlais RoadMath O Saflen/aPerthynasConsists ofNPRN85653TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85511TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85954TeitlNo.6 Pit (Dowlais)Math O Saflen/aPerthynasConsists ofNPRN85600TeitlRhaslas Pond, Ironstone Workings N of..Math O Saflen/aPerthynasConsists ofNPRN85617TeitlTunnel Pits, Bank E of..Math O Saflen/aPerthynasConsists ofNPRN85570TeitlRhaslas Pit: Spoil Heap SE ofMath O Saflen/aPerthynasConsists ofNPRN85522TeitlRhaslas Pit: Air ShaftMath O Saflen/aPerthynasConsists ofNPRN85623TeitlDowlais Rly.Math O Saflen/aPerthynasConsists ofNPRN85642TeitlDowlais Iron Co Rly.;L.&.N.W.R. Cwm Bargoed BranchMath O Saflen/aPerthynasConsists ofNPRN85975TeitlMerthyr Common, Drainage Ditch on ..Math O Saflen/aPerthynasConsists ofNPRN85979TeitlTre-Hir Pond, Leat W of..Math O Saflen/aPerthynasConsists ofNPRN85602TeitlBrecon & Merthyr RailwayMath O Saflen/aPerthynasConsists ofNPRN85539TeitlCwm-Bargoed Pits Engine HouseMath O Saflen/aPerthynasConsists ofNPRN85507TeitlDowlais Iron Company Railway (Part)Math O Saflen/aPerthynasConsists ofNPRN85965TeitlSpoil Heap (1), Dowlais TipsMath O Saflen/aPerthynasConsists ofNPRN85836TeitlRhaslas Pond, Spoil Heaps E of..Math O Saflen/aPerthynasConsists ofNPRN85533TeitlTunnel Pits, SmithyMath O Saflen/aPerthynasConsists ofNPRN85620TeitlTunnel Pits, Reservoir N of..Math O Saflen/aPerthynasConsists ofNPRN85641TeitlBargoed Incline (Dowlais Iron Co Rly.)Math O Saflen/aPerthynasConsists ofNPRN85575TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85650TeitlG.W.&.Rhymney Joint Rly. Taff-Bargoed Section Dowlais Iron Works BranchMath O Saflen/aPerthynasConsists ofNPRN85589TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85963TeitlNo.6 Pit (Dowlais): Spoil HeapMath O Saflen/aPerthynasConsists ofNPRN85572TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85565TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85567TeitlRhaslas Houses, Quarry Tramroad NW of..Math O Saflen/aPerthynasConsists ofNPRN85621TeitlDowlais Top - Bargoed RoadMath O Saflen/aPerthynasConsists ofNPRN85895TeitlNant Llechan, Ironstone Workings In..Math O Saflen/aPerthynasConsists ofNPRN85996TeitlDowlais Free Drainage System, AqueductMath O Saflen/aPerthynasConsists ofNPRN85974TeitlTre-Hir Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85548TeitlRhaslas HousesMath O Saflen/aPerthynasConsists ofNPRN85629TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85916TeitlLevel (2), NE of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85526TeitlShepherd's Pond (Dowlais Free Drainage System)Math O Saflen/aPerthynasConsists ofNPRN85906TeitlCoal Pits, NW of Pwll-y-HwyaidMath O Saflen/aPerthynasConsists ofNPRN85551TeitlTunnel Pits, Quarry N of..Math O Saflen/aPerthynasAssociated withNPRN85705TeitlSoap Pit, AditMath O Saflen/aPerthynasConsists ofNPRN85639TeitlPen-y-Daren Incline (Dowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85925TeitlIncline Top, Level SW of..Math O Saflen/aPerthynasConsists ofNPRN85628TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85654TeitlDowlais Iron Co Rly.Math O Saflen/aPerthynasConsists ofNPRN85967TeitlPits (3), Dowlais TipsMath O Saflen/aPerthynasConsists ofNPRN85566TeitlDowlais Free Drainage System, LeatMath O Saflen/aPerthynasConsists ofNPRN85968TeitlG.W.&.Rhymney Joint Rly. Taff-Bargoed Section, CulvertMath O Saflen/aPerthynasConsists of