Tarn (river) a mean flow of approximately . The Millau Viaduct spans the valley of the Tarn near Millau, and is now one of the area's most popular attractions. The tributaries of the Tarn include: The Tarn separates the Narbonne and Aquitaine basins. The Tarn passes through the following departments and towns: The Millau Viaduct, the tallest bridge in the world, carrying the A75 autoroute across the Tarn Gorge near Millau, opened in December 2004. The Tarn is famous for its brutal floodings, which are the most dangerous in Europe along with the Danube. The flooding of March 1930 saw the Tarn
Cirque de Navacelles Cirque de Navacelles The Cirque de Navacelles is large erosional landform, an incised meander, located towards the southern edge of the Massif Central mountain range in France. It is located near Saint-Maurice-Navacelles and Blandas between the Hérault department and the Gard department. The cirque is isolated, with only a few small villages in the surrounding area. However, with the completion of the Millau Viaduct in 2004 and the A75 motorway between Clermont-Ferrand and Pézenas, tourism in the region has increased. The area is an example of a dissected plateau in which the Vis River eroded a deep channel through the