A long early 1820s horse-worked tramroad built originally to supply lime to the newly enclosed Great Forest of Brecon by the Scottish indigo merchant John Christie but subsequently extended south to join the Swansea Canal (NPRN 34376) and thus providing a through route across what is now the western Brecon Beacons National Park to Sennybridge. Closed in the mid 1860s when the locomotive-worked Neath and Brecon Railway (NPRN 401414) was built on a parallel and intersecting course. There are important remains described in S.R. Hughes, 'The Archaeology of an Early Railway System: The Brecon Forest Tramroads' (RCAHMW, Aberystwyth), 1990.

Stephen R. Hughes, RCAHMW, 4 July 2007.