One of several components of a settlement on the banks of the Nedd Fechan (NPRN 412848), this arcuate wall lies on the edge of the stream bank. Open to the stream, the curving wall measures 6m long with a further extension for 2m along the stream bank to the south. It is 1m wide and 0.6m high. Its function is unclear but it may be the remnants of a larger structure damaged by stream erosion.
