(1689) CHAMBERED TOMB on the N. side of Mynydd Cefnamwlch (Fig. 102, Plate 1),¹ sometimes known as Coetan Arthur (Tithe Award Map), at 330 ft. above O.D. on ground falling gently to the N.E.

The main feature is a large rectangular capstone, with flat underside and ridged top, carried on three supporters. The S.W. side of the chamber may originally have been dosed by a fourth supporter, now prostrate, and dry walling of which a fragment remains. A large rectangular slab some 6 ft. N. of the tomb may have been the capstone of another chamber. There is now little evidence for the covering mound,² but the change in the angle of the slope (see section, Fig. I02), especially on the lower side of the chamber,  may represent the edge of a former mound about 28 ft. wide, of which a low upright stone 6 ft. S. of the chamber may have
formed a part.
Daniel, p. 193, No. 12; for Tref y Garnedd see under Llaniestyn, pp. 70b, 73a.

Condition: partly fallen; protected by iron railing.
SH 22973456                       3 x 57                           39 S.W. ‘Burial Chamber’