Berth-Llwyd Enclosure is an irregular oval enclosure visible as a cropmark, with a thin and irregular ditch broken into sections. The south side of the enclosure is straight, with a rounded eastern end, but with a north side jutting out at an angle. The outer ditch is partly bivallate on the west side. The enclosure is open to the southwest, facing a small stream valley. The appearance of the cropmark suggests the site is palisaded, and therefore potentially pre-Iron Age. The siting of the enclosure is interesting, sited on a spur on the northern side of a shallow valley, overlooking falling ground to the west.

T. Driver, RCAHMW, 4 May 2004