Missing lake(s) in Norway

[Dag Hjermann]

The 22 km long lake Salvatnet / Salsvatnet, mid-Norway, is missing (exact spelling varies a bit).
http://maps.stamen.com/terrain/#9/64.7237/11.6977

The extent of this lake (as well as some minor lakes in the area) is outlined (black lines) below:

Here it is in google maps:
https://www.google.no/maps/place/Salsvatnet/@64.7151147,11.1801623,9z

This is in fact the second deepest lake in Europe. Thanks for all your nice work, by the way!