Keep on the path, passed 'Park Gate Circle' for a few hundred yards, turn right onto the moors when you're in line with the firebreak, over in the Bunkers Hill Wood plantation. The ring/robbed cairn is found in the slight dip.
When I first posted this I thought it was Beeley Warren NW, having since found the proper NW........ this isn't it.
It has a definite robbed cairn look to it, a ring of rubble around a disturbed mound.
Not far from Beeley NW, in the dip of the two low ridges that cross the moor.