This small area gathers a few problems, all difficult and located in the East side of the hill to the opposite of the classical sector of Montrouget. Access : on the road from Courances to Arbonne, park the car at the aqueduct. Follow the underground part of that one by a path and climb the stairs. The boulder are underneath, on the East of the hill. It is also possible to come from the Montrouget sector, where an efficient warming-up can be realized.