I walked around this area with Chance a couple of years or so ago and again last summer. On the second occasion there was a traveller camped there who was very jumpy at me wandering around and followed us about as I showed my sons the ‘stone circle’ theory and yes the place was a bit of a mess.
I seem to remember reading about the name of this place somewhere, I will see if I can dig anything up. As always, Rhiannon is probably your best bet for this though (no pressure Rh).
There is a system of walls and what look like hut circles (but could be enclosures) in the wood that I think it was suggested by Guy and Chance that they could be of the IA period but there is no formal proof.
It is all interesting and certainly worth a visit if not only because the wood was just full of deer.
:o)