Driva

The Driva river runs through Trøndelag and Møre og Romsdal counties in Norway. The headwaters lie in the Dovrefjell mountains in the south, from where it flows northward, downward through the Drivdalen valley in the municipality of Oppdal. When the river gets to the village of Oppdal, it turns westward and heads down the Sunndalen valley to the Sunndalsfjord at the village of Sunndalsøra in the municipality of Sunndal. Some of the other villages along the river include Grøa, Hoelsand, Lønset, and Vognillan.. The Norwegian National Road 70 follows the river for most of its course.
Many of the tributaries on the west side of the Oppdal valley are dry since the waters in reservoirs formed from the many mountain lakes in that region flow in pipes through the mountain to the Driva hydroelectric power station at Fale in Sunndal. The largest lake in the reservoir system is Gjevillvatnet which is about 20 kilometres long and about 1 kilometre wide.

Wikipedia