Torneträsk or Torne träsk (Saami

Sami languages

Sami or Saami is a general name for a group of Uralic languages spoken by the Sami people in parts of northern Finland, Norway, Sweden and extreme northwestern Russia, in Northern Europe. Sami is frequently and erroneously believed to be a single language. Several names are used for the Sami...

: Duortnosjávri, Finnish

Finnish language

Finnish is the language spoken by the majority of the population in Finland Primarily for use by restaurant menus and by ethnic Finns outside Finland. It is one of the two official languages of Finland and an official minority language in Sweden. In Sweden, both standard Finnish and Meänkieli, a...

/Meänkieli

Meänkieli

Meänkieli is the name used in Sweden for Finnish dialects spoken in the northernmost parts of the country, around the valley of the Torne River....

: Tornio or Torniojärvi) is a lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 in Kiruna Municipality

Kiruna Municipality

Kiruna Municipality is a municipality in Norrbotten County in northernmost Sweden. Its seat is located in Kiruna...

, Lapland, Norrbotten County

Norrbotten County

Norrbotten County is the northernmost county or län of Sweden. It borders Västerbotten County to the southwest, the Gulf of Bothnia to the southeast. It also borders the counties of Nordland and Troms in Norway to the northwest, and Lapland Province in Finland to the northeast.The name...

 in Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

, in the Scandinavian mountain range. Träsk is the local word for lake (in Standard Swedish

Standard Swedish

Standard Swedish denotes Swedish as a spoken and written standard language. While Swedish as a written language is uniform and standardized, the spoken standard may vary considerably from region to region...

 it means "swamp"). It is the seventh largest lake in Sweden, with a total area of 330 square kilometres (127.4 sq mi) and a length of 70 kilometres (43.5 mi). The lake drains to the south-east through Torne älv. South-west of the lake lies the Abisko National Park

Abisko National Park

Abisko National Park is a National Park in Sweden.Geographically, Abisko is situated in the Swedish province of Lapland near the Norwegian border , and belongs to Kiruna Municipality, Sweden's northernmost and largest municipality...

 and the UNESCO

UNESCO

The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations...

 World Heritage Site

World Heritage Site

A UNESCO World Heritage Site is a place that is listed by the UNESCO as of special cultural or physical significance...

 Laponian area

Laponian area

The Laponian area is a large mountainous wildlife area in the Lapland province in Northern Sweden, more precisely in the Gällivare Municipality, Arjeplog Municipality and Jokkmokk Municipality...

.

Torneträsk originated from the remnant of a glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

, which has given the lake its depth of 168 metres (551.2 ft), making it the second deepest lake in Sweden. It is usually ice-covered from December through June, with variations dependent on temperature variations.