On this small circuit, the viaduct of Lapanouse is a great work with its 11 arches and 218m long.The railway Tournemire - Le Vigan is in a few numbers :- 60 kilometers long, 32 tunnels, 12 viaducts- built since 1883 and commissioned in 1896- closed in 1935 for travelers and 1955 for goods- the removal of the rails in 1960 and the rest in 1979 for the extension project of the Larzac. It is used today by the Vélorail and tourist train of Larzac departing from the station of Sainte-Eulalie de Cernon.