Innerdalsvatnet is a lake in Tynset Municipality in Innlandet county, Norway.

The northwest end of the lake has a large dam on it to control the level of the water for hydropower.

The dam is actually located on the municipal and county border.

The lake holds about 150,000,000 cubic metres (4.0×1010 US gal) of water which is run through a long tunnel to two nearby power stations.

This Innlandet location article is a stub.