Located to the immediate south of the cairn on the summit of Rhossili Down is what appears to be a small enclosure. The feature has been exposed through erosion of the footpath which runs along the ridge forming the west side of the common. Sub-rectangular on plan, it measures roughly 6m (E-W) by 4m within a stony bank 1m-1.5m wide and 0.2m high. No structural details are otherwise apparent.

David Leighton, RCAHMW, 29 December 2008