On a boulder about 70m East of Voile Solaire. From the start of Tonnerre Volé, reach far left around the corner to a good pocket. Pull onto the ledge and top out on the slab side of the prow.
Head South from a point 20m West of the crossing of Route de Barbizon à Fontainebleau and Route de Clair Bois, picking up a small trail heading up the hill. The boulder is just left of this trail after about 100m.
