The prehistoric hut group at Yr Onen survives within a system of terraced fields and deserted settlement (NPRN 403911). The remains comprise a level terrace cut into the hillslope on which at least three circular, embanked enclosures can be made out, though these are now partly denuded and obscured by bracken. The site lies close to the scheduled prehistoric enclosure at Yr Onen (NPRN 302878) to the south-west. Discovered during RCAHMW aerial reconnaissance on 24 January 2005.

T. Driver, RCAHMW, 17 January 2006.