An oval hilltop defended enclosure c.46m E-W by 44m, presently defined by recent field walls which sit on top of a substantial rampart and outer ditch of prehistoric origin. The internal stone-walled structures are comparatively recent sheep folds.
(source: RCAHMW 1956 (Caernarvon. I), 138 No.491)

T. Driver, RCAHMW, 2012