Lake Geneva

Lake Geneva
Satellite image
Location	Switzerland, France
Coordinates	46°26′N 6°33′E / 46.433°N 6.55°E / 46.433; 6.55Coordinates: 46°26′N 6°33′E / 46.433°N 6.55°E / 46.433; 6.55
Primary  inflows	Rhone, La Venoge, Dranse, Aubonne
Primary  outflows	Rhone
Catchment  area	7,975 km² (3,079 mi²)
Basin  countries	Switzerland, France
Max. length	73 km (45 mi)
Max. width	14 km (8.7 mi)
Surface area	582 km² (225 mi²)
Average depth	154.4 m
Max. depth	310 m
Water volume	89 km³
Residence time	11.4 years
Surface  elevation	372 m
Islands	Ile de la Harpe, Ile de Peilz (islets)
Settlements	Geneva (CH), Lausanne (CH), Evian (F), Montreux (CH), Thonon (F), Vevey (CH) (see list)

Lake Geneva or Lake Léman (French: Lac Léman, Léman, Lac de Genève) is the largest natural freshwater lake in western Europe (582 km²)^[1]. In addition it is the largest body of freshwater in continental Europe in term of volume (89 km³)^[2]. 60% of it comes under the jurisdiction of Switzerland (cantons of Vaud, Geneva, and Valais), and 40% under France (Haute-Savoie). The average level of water of 372 m is controlled by the Seujet Dam near Geneva.^[3]

Geography

Lake Geneva has a crescent shape, formed by a withdrawing glacier, narrows around Yvoire on the southern shore. It can thus be divided into the "Grand Lac" (Large Lake) to the east and the "Petit Lac" (Small Lake) to the west.

View of the lake and the Chablais Alps from Caux

The lake lies on the course of the Rhône River. The river has its source at the Rhone Glacier near the Grimsel Pass to the east of the lake and flows down through the Canton of Valais, entering the lake between Villeneuve and Le Bouveret, before flowing slowly towards its egress at Geneva. Other tributaries are La Dranse, L'Aubonne, La Morges, La Venoge, and Veveyse.

Lake Geneva has an alpine character. The Chablais Alps border its southern shore, the western Bernese Alps lie over its eastern side. The high summits of Grand Combin and Mont Blanc are even visible from a few places.

The shore between Nyon and Lausanne is called La Côte because it is "flatter". Between Lausanne and Vevey it is called Lavaux and is famous for its hilly vineyards. ^[4][5]

The lake's surface is the lowest point of the cantons of Valais and Vaud.

Compagnie Générale de Navigation sur le lac Léman (CGN) operates boats on the lake.

Environment

By the 1960s, the lake had ceased being a transport artery for commercial and construction materials.^{[citation needed]} In the late 1960s pollution made it dangerous to swim at some beaches of the lake; indeed, tourists taking a ride in the local submarine had near zero visibility (it was eventually solid).^[6][7] By the 1980s, intense environmental pollution (eutrophication) had almost wiped out all the fish. Today, pollution levels have been dramatically cut back, and it is again considered safe to swim in the lake.^[8][9] Major leisure activities practiced include sailing, wind surfing, boating (including water skiing and wakeboarding), rowing, scuba diving and bathing.

On a scientific footnote, in 1827, Lake Geneva was the site for the first measurement of the speed of sound in (fresh) water.^[10] French mathematician Jacques Charles François Sturm and Swiss Physicist Daniel Collodon used two moored boats, separated by a measured distance, as the transmit and receive platforms for the sounds of exploding gunpowder. The loud airborne sound coupled into the lake, establishing a loud underwater sound that could be measured at a distance. The flash of the exploding gunpowder provided the visual starting cue for the timepiece, and the underwater explosion sound striking a bell provided the finish cue.

Name

August Ludwig Erhard Boll : View of Lake Geneva, 1852.

Look up Geneva in Wiktionary, the free dictionary.

The first recorded name of the lake is Lacus Lemanus from Roman times; it became Lacus Lausonius, although this name was also used for a town or district on the lake, Lacus Losanetes and then the Lac de Lausanne in the Middle Ages.^[11] Following the rise of Geneva it became Lac de Genève (translated into English as Lake Geneva). In the 18th century, Lac Léman was revived in French. It is often called Lac de Genève in Geneva [1] [2] and Lac Léman elsewhere but the customary name in French is now Lac Léman or even le Léman. Certain maps name the lake the Lac d'Ouchy (after the port located on the Lausanne lake shore).^{[citation needed]} In contemporary English, the name Lake Geneva is predominant.

A note on pronunciation:

English: Lake Geneva /ˌleɪk dʒɨˈniːvə/

French: Lac Léman [lak leˈmɑ̃] or Lac de Genève [lak də ʒøˈnɛv]

German: Genfersee or Genfer See [ˈɡɛnfəʁˈzeː]

Italian: Lago Lemano, Lago di Ginevra [ˈlaːɡo di dʒiˈnɛvra].

Miscellaneous

Lists of miscellaneous information should be avoided. Please relocate any relevant information into appropriate sections or articles. (January 2008)

• Mary and Percy Shelley and Lord Byron holidayed by the lake and wrote ghost stories; one of which was the basis for the novel Frankenstein.^[12]
• Vladimir Lenin rented a little "chalet" at the French bank, near Geneva.^{[citation needed]}
• Pop singer Phil Collins lives in a home overlooking the lake.^[13]
• Ex-Formula 1 driver Michael Schumacher lives with his family in a home overlooking the lake.^[14]
• A statue of Freddie Mercury (the lead singer of the rock band Queen) can be found in Montreaux on these shores.

Cities and places

View of Lake Geneva from Saint-Sulpice.

View from Montreux

CGN paddle steamer in 1926 near Vevey

View from Lavaux

CGN paddle steamer with the Jet d'Eau in Geneva

References

External links

Wikimedia Commons has media related to: Lake Geneva

• International Commission for the Protection of Lake Geneva (CIPEL)
• Lake Geneva in German, French and Italian in the online Historical Dictionary of Switzerland.
• Les ports du lac Léman (French) guide to the lake's harbours
• www.plongee-passion.ch (French) A site with stacks of information for scuba diving
• The official site of the Geneva police of the lake with lots of information
• Waterlevels Lake Geneva at Chillon
• Waterlevels Lake Geneva at Saint-Prex
• Waterlevels Lake Geneva at Geneva

v • d • e Major Lakes of Switzerland Lake Biel (Lac de Bienne, Bielersee) · Lake Brienz (Brienzersee) · Lake Constance (Bodensee) · Lake Geneva (Lac Léman, Lac de Genève) · Lake Hallwil (Hallwilersee) · Lake Lucerne (Vierwaldstättersee) · Lake Lugano (Lago di Lugano, Ceresio) · Lake Maggiore (Lago Maggiore) · Lake Murten (Lac de Morat, Murtensee) · Lake Neuchâtel (Lac de Neuchâtel, Neuenburgersee) · Lake Sempach (Sempachersee) · Lake Thun (Thunersee) · Lake Walen (Walensee, Lake Walenstadt) · Lake Zug (Zugersee) · Lake Zurich (Zürichsee) · Sihlsee