A large earthwork, running for c. 390 metres, 2.5 metres wide, 1 metre high, curving from northeast to southwest to west, defining a parcel at the northwest end of Rhos Gelligron. On the east there is a drainage ditch, c. 2 metres wide, 0.5 metres deep, with water at base. J. J. Hall, Trysor, 31st January 2013