There is another possible ring cairn at SH61123094.
Gwynedd Archaeological Trust have it listed as a hut circle, but the most recent notes in 2001 say:
Possibly a ring cairn, not a hut circle. It has inner orthostatic thin slabs, no obvious entrance and on an exposed viewpoint. However, an old wall adjoins and there is possibly early field. Also rather large for a hut circle 7m internal diameter (Smith 2001).