Just picked up a map and guide to the area around Elton (a village nearby), produced by Elton Local HIstory Group, which says:
"South-west of Robin Hood's Stride, next to the path behind Wattscliffe quarry, look for the stone foundation of a small, circular Romano-British building, thought to be a shepherd's hut."
Located in the trees to the west of Robin Hoods Stride. A short walk along the vehicle track of approximately 80m, with the stones visible in trees immediately to the right of the track.
One of the larger stones in the ring has a well carved number 3 on it, perhaps suggesting there are several other hut circles in the area.
3 is worth noting as Rooke mentioned 3 circles in the area around Durwood (Dudwood to Barnatt)....so is this one of them?