About 200m to the north of Dyffryn Gwyn Farm, Glyn Davies and Jonathan Brentnall have recorded a 'clear ring with its eastern edge intersecting with the field boundary. It is three fields east of a tumulus on the south side of the road (NPRN 303602). There are also less clear geometrical shapes in the area around the ring.' Brentnall and Davies photographed the ring at Dyffryn Gwyn Farm during the drought conditions of summer 2018.
M. Ryder, RCAHMW, 15th February 2019.