Between Vol Relatif and Trou d'Air. Sitstart left near the stone and exit directly. NB: This boulder is very close to, or just on private property. It is not sure if climbing is tolerated. Please behave respectfully.
From Recloses, take Le Chemin de la Butte Blanche up to Chemin des Canches au Puits (electric line) just before Sentier de l'Orme to the left that goes up to the plateau. The boulder is near the top, on the right (fence to the left).