Lake Geneva Lake Geneva Lake Geneva ( or ' /, rarely ' ; ) is a lake on the north side of the Alps, shared between Switzerland and France. It is one of the largest lakes in Western Europe and the largest on the course of the Rhône. 59.53% () of it comes under the jurisdiction of Switzerland (cantons of Vaud, Geneva, and Valais), and 40.47% () under France (department of Haute-Savoie). Lake Geneva has been explored by four submarines: the "Auguste Piccard" and the "F.-A. Forel", both built by Jacques Piccard, and the two "Mir" submersibles. The first recorded name of
Puelo River course of the Ventisquero River. Traidor River rises in Hornopirén National Park. A large northern tributary of the Puelo, the Manso, has its sources in Mascardi Lake and other lakes and streams south-east of the Cerro Tronador, also in Argentina, and flows south-west through the Andes to unite with the Puelo a few kilometers west of the 72nd meridian. Puelo river's lower course is impeded in such a manner as to form three small lakes, called Superior, Inferior and the Tagua Tagua Lake. Puelo River The Puelo River has its origin in Lake Puelo in Argentine, and flows north-west through