This natural arch is located up on the cliff above the small canyon of Oyans (La Combe d'Oyans) near the hamlet of Les Ducs in Drôme department of France. The opening has an estimated span of 2.0 meters. The name of the arch comes from the climbing route called Zou which passes close to the opening. IGN topographic map Top 25 number 3136 Bourg-de-Péage (pleat D3).
