This pierced pothole is located on Gorges de Turignin near the village of  Champagne-en-Valromey in Ain department of France. The opening has an estimated span of 1.7 meter. IGN topographic map Top 25 number 3231 west Ambérieu-en-Bugey (pleat B10). The Gorges de Turignin is located at notable site on the map for his beautiful narrow gorge on Seran River.