Telemark (tĕˈləmärk) [key], county (1995 pop. 163,143), 5,915 sq mi (15,320 sq km), SE Norway, bordering on the Skagerrak in the east. Skien (the capital), Porsgrunn, Kragerø, and Notodden are the chief towns. The county includes the Hardangervidda plateau in the northwest and the Tokke River, and it is noted for its lakes, mountain scenery, and handicrafts. Farming, mining, fishing, lumbering, and the manufacture of forest products, chemicals, and porcelain are the main occupations. Much hydroelectric power is produced in Telemark. It was there that skiing as a sport first became popular (late 19th cent.).