This double arch is located on L'Ecorche-Boeuf locality above the torrent of La Dorches near the village of Chanay in Ain department of France. The largest opening has a measured span of 9.5 meters and the second opening have 5.0 meters length. IGN topographic map Top 25 number 3330 west Bellegarde-sur-Valserine (pleat D2).