Doubs
The third one in Top 9 Longest Rivers in Switzerland that Toplist would like to introduce to you is Doubs. The Doubs is a river in far eastern France that runs 453 kilometers (281 miles) into western Switzerland. It is a Saône tributary on the left bank. It rises near Mouthe in the western Jura mountains at 946 meters (3,104 feet), and its mouth is at Verdun-sur-le-Doubs, a village and commune in Saône-et-Loire at about 175 meters (574 feet). It is France's tenth-longest river.
Besançon, the basin's most populous settlement, is located on its banks. Its path includes a small waterfall and a 4-kilometer-long (2.5-mile-long) narrow lake.
It flows northeast from its headwaters in Mouthe, first a few kilometers north of the French-Swiss border, then for a shorter distance, about 40 kilometers, to form the border. It turns west then south west just north of the Swiss town of Saint-Ursanne. It takes a southwest striation or fault of the Jura Mountains south of Montbéliard, flowing over a greater distance than the previous flow. It then empties into the Saône at Verdun-sur-le-Doubs, which is about 20 kilometers (12 miles) northeast of Chalon-sur-Saône.
The course is shaped like a terrier sitting upright and leaning right, with the upper part of a northeastern corner "ear" being the only zone in Switzerland, reaching Saint-Ursanne. It borders or crosses the cantons of Jura and Neuchâtel in that country.
Length: 453 kilometres (281 mi- shared with France)