Tunnsjøen (in Sami language Dåtnejaevrie) is a lake in Røyrvik and Lierne municipalities in Nord-Trøndelag county, Norway. It is 100.18 km² in area. It is 358 m above sea level with a depth of 220 m and a volume of 8.68 km³. It is the seventh largest lake in Norway.
The island Gudfjelløya (Sami Tjåehkere) lies in Tunnsjøen lake. It has a high point of 812 m above sea level, which is 454 m higher than the lake. This makes Gudfjelløya the highest i...
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Area:
- 100.18 km² (38.68 mi² )