Lågen(redirected from Gudbrandsdalslågen)
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(Numedalslâgen), a river in southern Norway. Length, 342 km; basin area, 5,600 sq km. It begins in the Scandinavian Mountains on the Hardangervidda plateau, flows through the Numedal valley, and empties into the Skagerrak. Average annual flow along the lower course is 123 cu m per sec. The river is in flood in May-June (mainly from the melting of seasonal snows). It is covered with ice from December through March. There is a hydroelectric power plant on the river. The city of Larvik is near the mouth.
(Gudebrandsdalslågen), the largest tributary of the Glåma River in Norway; it enters the Glåma from the right. Length, 203 km; basin area, more than 12,000 sq km. It flows from Lake Lesjaskog, on the water divide of the Jotunheim Mountains, and through the deep Gudebrandsdal valley into Lake Mj0sa, below which it is called the Vorma. The average annual flow along the lower course is 247 cu m per sec. There is a hydroelectric power plant on the river.