On my most recent visit to Normandy, I asked at the St Pierre Eglise tourist office about the local megaliths, and I was pleasantly surprised that the helpful lady in there did actually know something about the local megaliths, once prompted.
When I asked about this, she told me that the stones are in a wood on private land, and that I would not be able to visit them.
This is a shame, but it is a positive identification of them, and that they still exist.
Something is not right. This message is just to keep things from messing up down the road