Says JC - you just quoted him saying so :-)
It's quite a common theory that natural outcrops were used as sacred markers. They still are in some 'primitive' cultures.
"Says JC - you just quoted him saying so :-)"
Yes, that's the tautology!
but where else does it say so? and what qualifies such a site to be posted here - folklore? proximity to other actual megalithic sites? vibes? because I say so?!