Two Building platforms are located on the side of a track on the N-facing slope of the W end of Mynydd y Gaer.
SS 95348642 (1): 11m (E-W) by 4m, cut back 0.75m deep and built out 1.1m high.
SS 95345639 (2): to the S of (1), 11m (E-W) by 4m, cut back 1m deep and built out 0.6m high.

DKL 1992