Kongsberg (Norwegian pronunciation: [ˈkɔ̂ŋːsbær(ɡ)] ) is a historical mining town and municipality in Buskerud county, Norway. The city is located on the river Numedalslågen at the entrance to the valley of Numedal. Kongsberg has been a centre of silver mining, arms production and forestry for centuries, and is the site of high technology industry including the headquarters of Norway's largest defence contractor Kongsberg Gruppen. Kongsberg, formerly spelled Konningsberg (lit.
https://en.wikipedia.org/wiki/Kongsberg