I know these features really well. I walk passed them every week while walking the dogs.
I've always thought that they were cairns. But I've looked on Coflein and GAT and found nothing about them.
They are not marked on the OS map as cairns. So I have been baffled. Clearly man made and very obvious they have had me scratching my head for a while.
Then I thought they are bound to mentioned on TMA, but no.
But then on Coflein I was reading about the settlement when I realised that the outlying structures to the North of the settlement (mentioned in Gladmans post) are these. Coflein suggest that they may be cairns.
I guess they are marked on the OS map as part of the settlement.
So I have added some pictures. They are on the North east slope of Moel faban just above the settlement.
Set below a Bronze Age cairn cemetery crowning the summit ridge of Moel Faban, this is one of a number of settlements in the immediate locality.
According to Coflein:
'A generally curvilinear enclosure, c.30m N-S by 20m, defined by tumbled stony banks & scarps, incorporating at least three structures, the largest c.7.2m in diameter: set within an extensive area of relict field boundary features, c.430m NE-SW by 285m, including several groups of settlement features, with further, similar features &/or cairns outlying on the N.
A burnt mound...lies rather to the E.'