FR-52. This natural arch is located on the side of the long distance footpath GR 62 on the Chaos de Caoussou opposite to
L'Arche de Caoussou 1 on Causse Noir area in Aveyron department of France. The opening has an estimated span of 3.0 meters. IGN topographic map TOP 25 number 2641 west Millau (pleat B4).
