A horseshoe-shaped burnt mound that measures 11m in diameter by 0.5m high. It is almost circular with a narrow radial slot measuring 1.5m wide in the south-western side. It is located on the edge of a low lying boggy area that was once submerged by the reservoir called Llyn Bwlch-y-moch that has subsequently been drained. P.J. Schofield, Oxford Archaeology North, 17th January 2006