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
Millau currently take place in the evening from July to August on Mandarous Square, the main square of the city center. Since that time, in November, the autumn fair of farm products is organized by the same association of farmers and runs for two days at Victory Park in Millau. There are 11 listed buildings are historical monuments in the town of Millau : In 2012, the municipality had 22,013 inhabitants. The evolution of the number of inhabitants is known throughout the population censuses conducted in the town since 1793. From the twenty-first century, censuses of municipalities with more than 10,000