Lakså (Norwegian) or Láksoavvo (Lule Sami)[2][3][4] is a small village in Fauske Municipality in Nordland county, Norway.

[6]: 20 Mons Petter (1807–1888), an impoverished Sami known for having found copper ore in Sulitjelma, came from the Skognes farm in Lakså.

The villages along the lake were isolated for several weeks each fall and spring, when ice formed or thawed on the water and was unsafe for travel.

Without the steamships, which had created a navigable stretch of open water through the ice, it was no longer possible to travel with one's own boat.

A construction road was built through the valley in the 1960s as part of building the Siso Hydroelectric Power Station.