Yes, from the photographs this looks very much like the 'circle' I described back in 2002 posting on the Pikestones page: http://www.themodernantiquarian.com/post/5926 The alignment with Smithills Moor (Winter Hill) and the plantation treeline in the near distance appear to agree with my observations. No GPS in those days!
This site is roughly 300 metres from the pikestones on a bearing of roughly north! (sorry guys i didnt have my compass!) but the grid location given is exact.
Its a low mound circular in shape 3-4 metres in diameter on the side of the hill with a complete set of kerbstones i beleive this is the 'stone circle' mentioned in the fieldnotes on the pikestones which ive been looking for, for quite a while now winter visits are definately worth the effort!