Part of the route of Hill's Tramroad (nprn 85860) branching from the 'main line' at SO 24862 09782, just south of the Pwll Du tunnel south portal (nprn 85831) and curving to the south west as an overgrown sunken track to SO24810 09668 where it is no longer traceable (April 2000); it formerly continued to the south side of Blaenavon Ironworks (nprn 34134).
RCAHMW, 05 November 2007.