The cropmarks of a subcircular concentric ditched enclosure at Plas-y-Parc measure c.46m in diameter, and are set rather eccentrically within a larger, less well defined circuit, c.174m in diameter, the south facing entrances of both being linked by a c.40m approachway, the outer circuit presenting an inturned entrance facade.

T. Driver, RCAHMW, 2023