OF COURSE IT HAS. THERE WAS NO MYSTERY: Has the mystery of Stonehenge finally been solved?
Area I grew up in, which, incidentally, also has a lot of megalithic circles, every spring we started to ready the fields by adding the new crop of rocks that surfaced over the winter onto the rambling stone walls. I always figured one year had exceptionally large boulders for a crop, and some local boys got drunk and said “Hold my small beer and watch this.”