I was just wondering if Clach na Boile should really be lumped in with Schiehallion?
http://www.themodernantiquarian.com/browse.php?site_id=1275
It's 5km away from Schiehallion and nothing to do with it. if my memory serves me correctly you can't even see Schiehallion from the stone because of the proximity of the hills immediately SE of Clach na Boile.
just a thought!
cheers
Andy