This natural arch is located close to Pas de L'Echelette near the summit of But Sapiau and the little ski resort and recreation area of Col de Rousset in Drôme department of France. The entrance opening has a measured height of 4.0 meters but it is more higher on the other side of the sheer cliff. Also, the arch has a depht of 15 meters. IGN topographic map Top 25 issue 3237 west Glandasse (pleat A3).
