I find it very interesting the 'choice' of stones often used in stone circles and wonder if they tell a story either locally or nationwide?
We get all sorts of course and have seen how moving large stones doesn't appear to have been much of a barrier if they were required, yet we see large open circles with often quite small stones when larger ones are available nearby and larger ones used when smaller ones are available. Then you get a mixture of both, then some 'worked' whilst others are natural. Others appear to be chosen for their shape and other stones level in height whilst others appear to be just random.
Do the even height ones have a different meaning or use to the random height ones and are the worked ones of more significance? Does the large circle of small stones have lesser significance than the large circle with large stones or the small circle like Duloe that I was at a couple of days ago with large stones? A minefield isn't it!!