Three eccentrically concentric stony rings, each c.2.0m thick, 20m overall diameter, the innermost circle, c.6.0m overall diameter.
Part of what is designated the "Cwm Tywyll ritual complex" (SAM ME146: Nprn95526).
(source Os495card; SJ03SW12)
RCAHMW AP94-CS 1048
RCAHMW AP945134/41-2; 965041/49
J.Wiles 27.09.02