Tunnsjøen
Tunnsjøen (Norwegian) or Dåtnejaevrie (Southern Sami) is a lake in the municipalities of Røyrvik and Lierne in Trøndelag county, Norway. The 100.18-square-kilometre (38.68 sq mi) lake lies just south of the large lake Limingen, and just west of the border with Sweden. It is 358 m (1,175 ft) above sea level and has a volume of 8.816 km3 (2.115 cu mi). The deepest part of the lake is 222 m (728 ft) deep. It is the seventh largest lake in Norway.[1]
| Tunnsjøen (Norwegian) Dåtnejaevrie (Southern Sami) | |
|---|---|
 Tunnsjøen as seen from the north-west shore. Gudfjelløya to the right. | |
  Tunnsjøen Location of the lake  Tunnsjøen Tunnsjøen (Norway) | |
| Location | Lierne and Røyrvik, Trøndelag |
| Coordinates | 64.7050°N 13.2116°E |
| Type | glacier lake |
| Primary inflows | Ingelsvasselva, Mykkelvikelva, Rørvasselva and Stallvikelva |
| Primary outflows | Tunnsjøelva |
| Catchment area | 388.68 km2 (150.07 sq mi) |
| Basin countries | Norway |
| Max. length | 20 km (12 mi) |
| Max. width | 10 km (6.2 mi) |
| Surface area | 100.18 km2 (38.68 sq mi) |
| Average depth | 88 m (289 ft) |
| Max. depth | 222 m (728 ft) |
| Water volume | 8.816 km3 (2.115 cu mi) |
| Shore length1 | 118 km (73 mi) |
| Surface elevation | 358 m (1,175 ft) |
| Islands | Gudfjelløya and Litlfjelløya (or Reinøya) |
| References | NVE |
| 1 Shore length is not a well-defined measure. | |
Gudfjelløya
The island Gudfjelløya (Southern Sami: Tjåehkere) lies in Tunnsjøen lake. It's highest point is 812 m (2,664 ft) above sea level; which is 454 m (1,490 ft) higher than the lake. The peak is named: Gudfjellet (in english "God's Mountain"). This makes Gudfjelløya the highest island within a lake in Norway; and in Europe. It's towering higher than the island of Monte Isola within Lake Iseo, in northern Italy. The island is located in the lake's central parts. The area is about 6.1 km2 (2.4 sq mi). To the southwest of it, the lake's second largest island is situated. That is: Litlfjelløya (in english: "Little Mountain Island"); also called Reinøya (in english: "Reindeer Island"). It's highest point is 177 m (581 ft) above the lake's water surface.