__NOTOC__ Lake Bienne or Lake Biel (french: Lac de Bienne ; german: Bielersee) is a

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much lar ...

in western Switzerland. Together with Lake Morat and Lake Neuchâtel, it is one of the three large lakes in the Jura region of Switzerland. It lies approximately at the language boundary between German and French speaking areas.

Geography

The lake is 15 km long and up to 4.1 km wide. Its surface area is 39.3 km², the maximum depth 74 m. The lake is located at 429 metres above sea level. Lake Biel/Bienne has a catchment area of about 8,305 km². Water remains in the lake for an average of 58 days. The rivers Aare and Zihl/ Thielle flowing from Lake Neuchâtel, the Twannbach draining water down from the surplombing first Jura mountain range and the Suze draining water down from the

Vallon de St. Imier Vallon is a municipality located in the district of Broye, in the canton of Fribourg, Switzerland. History Vallon is first mentioned in 1200 as ''Valum''. Geography Vallon has an area, , of . Of this area, or 88.0% is used for agricultural p ...

, are the main tributaries. The Aare was redirected into the lake in 1878, in order to prevent the flooding of the nearby area called "Seeland", and drains the water out of the lake down to Büren through a simultaneously man-made channel. The level of all three lakes is being controlled by a dam built across the channel, in

Port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as ...

. The largest settlement along the shores of Lake Biel are the

bilingual Multilingualism is the use of more than one language, either by an individual speaker or by a group of speakers. It is believed that multilingual speakers outnumber monolingual speakers in the world's population. More than half of all Eu ...

city of Biel/Bienne and its sister city Nidau, both located on the northern end. The

St. Peter's Island __NOTOC__ St. Peter's Island (french: Île Saint-Pierre; german: Sankt Petersinsel) is a peninsula and former island situated in Lake Biel in the canton of Bern, Switzerland. It has a length of about and a maximum width of . Its highest point ...

attracts tourists. The island is located near Erlach/Cerlier.

Jean-Jacques Rousseau Jean-Jacques Rousseau (, ; 28 June 1712 – 2 July 1778) was a Genevan philosopher, writer, and composer. His political philosophy influenced the progress of the Age of Enlightenment throughout Europe, as well as aspects of the French Revol ...

once spent a few months on the island. One of the main business in the area is the watch and affiliated microtechnic industries. World famous watch brands have their sites and headquarters in the area, including the Swatch Group and

Rolex Rolex SA () is a British-founded Swiss watch designer and manufacturer based in Geneva, Switzerland. Founded in 1905 as ''Wilsdorf and Davis'' by Hans Wilsdorf and Alfred Davis in London, the company registered ''Rolex'' as the brand name of ...

movements manufacture. The lake's surface is the

lowest point This article lists extreme locations on Earth that hold geographical records or are otherwise known for their geophysical or meteorological superlatives. All of these locations are Earth-wide extremes; extremes of individual continents or coun ...

of the canton of Neuchâtel.

Towns and villages by the lake

As the lake is located on the border of the French and German language regions, most places have names in both languages, though not all versions are still in use. *Alfermée *Bipschal - Bévesier * Erlach - Cerlier *Gaicht - Jugy * Gerolfingen * Hagneck *Im Rusel * Ipsach * Le Landeron ( canton of Neuchâtel) - Landern * Ligerz - Gléresse * Lüscherz - Locras * Mörigen - Morenges *Neuenstadt - La Neuveville * Nidau * Sankt-Petersinsel *Schafis - Chavanne *Schernelz - Cernaux *Sutz-Lattrigen * Täuffelen - Choufaille * Tüscherz - Daucher * Twann - Douanne * Vinelz - Fénil *Vingelz - Vigneules *Wingreis - Vingras

External links

*
Waterlevels of Lake Bienne
at Ligerz
Tourism Biel/Bienne Seeland
* Lac de Bienne (Nidau)

{{Authority control Biel Biel Biel LBiel Bern–Neuchâtel border