A sub-rectangular enclosure, measuring 200m east-west and 250 m north-south and spanning the Nant Onneu valley. The enclosure originally appears to have been defined by a bank and ditch with a later dry stone wall being constructed on the inside of the bank. On the west side of the enclosure there is a bank up to 1.5m wide with a ditch 1.5m wide and 0.4m deep . The stone wall is constructed from limestone blocks and is 0.25m thick at the top tapering to a thickness 0.75m at its base,. The stones have been mortared in place and the wall has "cock & Hen " upstanding stones along its top.
The boundary bank and ditch is missing at the south side, adjacent to the road.
J. Winterburn, John Winterburn Archaeological Services, May 2005.
