Article in Current Archaeology: A project to record the prehistoric decoration on the supposedly Bronze Age Trefael stone has revealed the deliberate cannibalisation of an earlier Neolithic monument, and an 8,000 -year focus of human activity.
http://www.archaeology.co.uk/articles/features/trefael-the-dolmen-that-became-a-standing-stone.htm
Something is not right. This message is just to keep things from messing up down the road