The second was on TMA, and already well-covered by Postie, but I suspect it is still a very seldom-visited site that is totally worth the effort. Still a "hidden gem" I reckon:
Can't argue with that. Only seen it myself from a distance and I doubt if there's a much more isolated monolith in Britain....
Clach na Teampaill on Taransay is 5K from the nearest road and this one ttp://www.themodernantiquarian.com/site/3789/clach_na_tiompan.html is even further from the locked gate at hte nearest road ,although it is right next to a land rover track .