This old trackway crosses the northeastern Epynt hills, running east-west for 2.8km between Upper Chapel and the farms on the eastern side of the common. It crosses the common from SO0472641456 to SO 0207640772. It is most of its length it is no longer depicted on Ordnance Survey maps, but may have had some significance before the 20th century. It crosses the old Builth-Brecon road, NPRN 247185, at SO0289940849, at Twyn y Post, formerly Pen Pebyll or Post y Pebyll. J.J. Hall, Trysor, 21 March 2009.