For directions and facilities, see Bois de la Plesse north.
This is the better preserved of the two allées here, but still has no capstones remaining. The side stones mark out a chamber about 7m long and 1m high. Its eastern end entrance has a row of 8 stones forming a facade reminiscent of the tomba di gigante on Sardinia.
The site was excavated in 1966/7.
The area around, and the field beyond, are littered with stones, maybe originally from this monument or its near neighbour.