This natural arch is located close to the Chalet de l'Anglettaz (Anglettaz Chalet) above the village of Aviernoz in Haute-Savoie department of France. The opening has an estimated height of 2 meters. It was probably formed by an intermittent small brook (tributary of Nant de l'Aup) flowing at snow melt or during big rainfall. IGN topographic map Top 25 number 3430 west Mont-Salève (pleat K3).