What is "nausta"

Nausta is a river in Naustdal Municipality in Sogn og Fjordane county, Norway. It runs through the Naustdal valley to the southwest before emptying into the Førdefjorden at the village of Naustdal. The long river drains a watershed area of about . The river begins at the lake Inste Langevatnet, which sits high up in the mountains at an elevation of above sea level.