Latitude 46.753287. Longitude 1.849797. The ancient monument known as Pierres-Folles or ‘Alle Couverte de la Pierre-Folles’ and also ‘Dolmen de la Pierres Folle’ is to be found near the tannery and along a footpath to a woodland clearing about half a mile south-west of Commequiers village, in Vendee, western France, at the north-east end of Pierre Folle road and to the south of the D754 St Gilles highway. It is a dolmen (table-tomb) or burial chamber that dates from the early Bronze-Age approx 2,500 BC. The nearest sizeable town, Challans, is 5 miles to the north-west on the D32 (Route des Sables) highway. Apparently one of the dolmen’s stones has what is considered by local people to be the footprint of the Virgin Mary!
Referred to as a ‘Dolmen’ which means ‘table-shaped tomb’. This particular burial chamber or passage-grave is quite a huge prehistoric monument, although it has, sadly, suffered from vandalism. Three huge up-right slabs support the equally massive broken capstone. Originally it was over 2 metres high and was covered over by an earthen mound, but this has long since gone. Behind it there is a rectangular-shaped chamber approx 5 metres in length. The portal (entrance) at the eastern-side still stands to its original proportions, but the rest has collapsed and been damaged due to recent vandalism – a number of stones not now being in situ; however the sidestones of the chamber appear to be in place but again there is some damage. The monument is thought to be of the late Neolithic to early Bronze-Age periods in date – around 2,500 BC?
Click on the following link for photos:-
The Journal Of Antiquities 
