Altevatnet is Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

’s 11th largest lake, with a surface of up to 80 km². The lake is approximately 35 km long and on average some 2 km wide. It is located in Bardu

Bardu

Bardu is a municipality in Troms county, Norway. The administrative centre of the municipality is the village of Setermoen, the largest urban area in the municipality.Norway's largest military garrison is located at Setermoen...

 municipality, and is the largest lake in Troms

Troms

or Romsa is a county in North Norway, bordering Finnmark to the northeast and Nordland in the southwest. To the south is Norrbotten Län in Sweden and further southeast is a shorter border with Lapland Province in Finland. To the west is the Norwegian Sea...

 county. The 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,...

 is regulated. The surface lies 489 m above sea level. It discharges into the Barduelva

Barduelva

Barduelva is a river in Troms county, Norway. It runs from the lake Altevatnet and empties into another river, the Målselva. This river is the largest source of hydroelectricity in all of Troms county....

 river, which empties into Målselva

Målselva

The Målselva river in Troms county, Norway has given name to Målselv municipality and the Målselvdalen valley. The river empties into the in Målselvfjorden, an arm of the Malangen fjord, north of Olsborg. The rivers Divielva, Tamokelva, and Rostaelva converge near the Lille Rostavatn lake to form...

 river, which in turn empties into the Malangen

Malangen

Malangen is a fjord and a former municipality in Troms county in Norway. The fjord is located between the islands of Kvaløya and Senja and the area today is divided between the municipalities of Balsfjord, Lenvik, Tromsø, and Målselv...

 fjord

Fjord

Geologically, a fjord is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity.-Formation:A fjord is formed when a glacier cuts a U-shaped valley by abrasion of the surrounding bedrock. Glacial melting is accompanied by rebound of Earth's crust as the ice...

.