Femunden
Femunden is Norway's third largest lake and the second largest natural lake in Norway. It is located in Innlandet and Trøndelag counties in Norway, just west of the border with Sweden. The lake lies primarily in Engerdal Municipality and also smaller parts are located in Os Municipality and Røros Municipality. Femundsmarka National Park borders the northeastern part of the lake.
The lake holds about of water and reaches a maximum depth of. The surface of the lake sits about above sea level.
Name
The first element has no known meaning, and the last element is the suffix -mund or -und. The final part -en is the definite article in the Norwegian language.History
After Sweden had conquered the parishes of Idre and Särna in 1644, the lake Femunden was considered to be part of the border between Norway and Sweden. But this was never officially recognised by the Dano-Norwegian government, and during border adjustments in 1751 the Femundsmarka area east of the lake was granted to Norway from Sweden.The new border from 1751 is quite special: For a length of, it makes a completely straight line between the summits of the tall mountain Våndsjögusten and the tall mountain Østerhogna. Straight-line national borders are very unusual in Scandinavia, except in the very northernmost parts.