This site is of disputed antiquity. If you have any information that could help clarify this site's authenticity, please post below or leave a post in the forum.
There are two stones here, one which the EH record on Pastscape suggests could be prehistoric,
http://www.pastscape.org.uk/hob.aspx?hob_id=59083
at SE 65519330
and the other which is said to be 'naturally placed'.
http://www.pastscape.org.uk/hob.aspx?hob_id=59080
at SE 65539339.
It would surely seem unlikely, given their extreme closeness, that the second is "of no significance" (as a 1974 visit apparently concluded).