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
Geology of the Alps valleys repeatedly covered all of the Swiss plain and shoved the topsoil into the low rolling hills seen today. They scooped out the lakes and rounded off the limestone hills along the northern border. The last great glacier advance in the Alps ended some 10,000 years ago, leaving the large lake now known as Lake Neuchatel. The ice in this region reached some 1,000 m (0.6 mi) in depth and flowed out of the region behind Lake Geneva some 100 km (60 mi) to the South. Today large granite boulders are found scattered in the forests in the region. These