It is an Angevin-style dolmen with a portico-shaped corridor, two pillars of which remain. A slab resting on the ground in the north-east of the chamber could correspond to the cover table of the portico. The dolmen is oriented to the south-east. The chamber, rectangular in shape, measures 7.20 m long and 3.50 m wide on average. Inside the chamber, there is a column-shaped stone, which does not support the cover and whose function remains unknown. The chamber is covered with a single cover table, 8.30 m long and 5.50 m wide and 0.65 m thick, the weight of which is estimated at more than 80 t. It was broken in two parts by lightning in 1793, according to Abbé Baudry, in 1815 according to Léon Audé. In reality, the fracture could be much older or it could be two slabs neatly accoles1. The granite blocks could come from a quarry identified 50 m further west. The remains of the pear-shaped tumulus are visible to the south of the monument, visible since the new development.
The menhirs de la Frébouchère, satellite menhirs of the dolmen, are located a few hundred meters north and north-east of the dolmen.
No archaeological material was found but some lithic objects, including a polished axe, were found nearby during surface surveys. (Source wikipedia) Many Neolithic objects from the town of Bernard are presented at the Historial de la Vendée. Booklet available in town hall from Monday to Friday from 9am to 12:30pm