The natural bridge of Pierre-Percée is located on the side of the village of Champfromier close to the confluence with Volférine river in Ain department of France. The opening has a measured span of 1.4 meter. Photo taken during dry season of the intermittent tributary of the Volférine river.  IGN topographic map Top 25 number 3328 west Crêt de la Neige (pleat D5).