Can't tie them directly but these may be two stones in the Rock Art site listed as Beanley Portable a and Beanley Portable b, noth look very impressive, see:
Also if you look at the latest map on there and on google/virtual earth there is a clear circular ditch settlement just to the North of the rock outcrop (55°27'28.99"N 1°51'24.80"W). The entrance to this is shown on the map and seems clear from the sat images (I LOVE Goggle/Virtual earth!) as facing towards any trackway that would have come out from the site, passing through an "entrance" at the rock outcrop.
Missed this one in my visit so a couple of things to look at when I get the chance to go back. The more you dig on this stuff the more interesting it gets.......