Lesjaskogsvatnet

Lesjaskogsvatnet () is a lake in Lesja Municipality in Innlandet county, Norway. The lake lies in the upper Gudbrandsdalen valley, between the villages of Lesjaskog (on the west end) and Lesjaverk (on the east end). The European route E136 highway and the Raumabanen railway line both run along the north side of the lake.

The lake is unusual by having two outlets, one in each end. It flows east into the Gudbrandsdalslågen river and it also flows out to the west into the Rauma river in the Romsdalen valley. This bifurcation lake serves as the headwaters for two major rivers: Gudbrandsdalslågen (flowing south/east) and for Rauma river (flowing west). Gudbrandsdalslågen (also known as Lågen) flows through the Gudbrandsdalen valley, ending when it flows into the lake Mjøsa. The lake sits on the watershed in the north-western corner of Glomma drainage system that includes large parts of eastern Norway.