NPRNTeitlMath O SafleArchifauDelweddauNPRN91644TeitlTramroad, Pwll Du QuarryMath O SafleTRAMFFORDDArchifau4Delweddau1NPRN260678TeitlHill's Tramroad Between Pwll Du and Tyla QuarriesMath O SafleTRAMFFORDDArchifau7Delweddau1NPRN85860TeitlHill's TramroadMath O SafleTRAMFFORDDArchifau42Delweddau25NPRN260437TeitlHill's Tramroad, Section South West of Pwll Du Tunnel, BlaenavonMath O SafleTRAMFFORDDArchifau3Delweddau0NPRN91617TeitlBlaenavon RailroadMath O SafleRHEILFFORDDArchifau16Delweddau0NPRN91607TeitlTyla West Quarry, Gilwern Hill, ClydachMath O SafleCHWARELArchifau13Delweddau5
