The  lake is somewhat V-shaped and it has a small dam on the southeastern side to hold water for hydroelectric power generation. The water flows south through a series of dammed lakes before emptying into the river Sira at Tonstad, about  away.
The lake has a V-shape and a small dam on its southeastern edge to retain water for hydroelectricity production. The water then moves southward through several dammed lakes until it reaches the Sira River at Tonstad, roughly distant.