LAGEN

also called Numedalslgen river, southeastern Norway. Rising in the Hardanger Plateau, the Lgen flows generally east and north, then southeast through Numedalen, a valley in Buskerud fylke (county), past Rdberg and Kongsberg, through Vestfold fylke and into the Skagerrak (an arm of the North Sea) at Larvik. With a total length of 209 miles (337 km), it is the third longest river in the country. Near Kongsberg, silver was mined from the early 17th century until the mid-20th century, and the oldest school of mines in the world (founded 1757) is in the town. Above Kongsberg, lumbering and hydroelectric power generation are the main economic resources; below Kongsberg, agriculture becomes important. Larvik is an important lumber-products centre on the southern coast. Small towns in the river valley have many interesting medieval stave churches. also called Gudbrandsdalslgen, river, south-central Norway. The name Lgen is applied to the portion of the river in Oppland fylke (county); it rises in small lakes and streams in the Dovre Plateau at the northern end of Gudbrands Valley and flows southeast for 122 miles (199 km) through Gudbrands Valley to Mjsa Lake at Lillehammer. It flows out from Mjsa as the Vorma River (in Akershus fylke) southeast to its confluence with the Glomma (Glma) River at rnes, more than 100 miles (160 km) from its source. It drains an area of about 4,600 square miles (11,900 square km) through its main tributariesthe Otta, Sjoa, Vinstra, and Gausa rivers. Many large hydroelectric power generating stations have been built along the Lgen. The main road and rail routes between Trondheim and Oslo follow the river for most of its length.