Kongsberg Silver Mines
The silver mines of Kongsberg, in Buskerud county in Norway, constitute the largest mining field in Norway, with over 80 different mines. It was the largest pre-industrial working place in Norway, with over 4,000 workers at its peak in the 1770s and supplied over 10% of the gross national product of the Danish–Norwegian union during its 335-year-long history: over 450,000 man-years were expended in the production.
Sydvaranger
Sydvaranger Gruve AS, previously A/S Sydvaranger, is an iron ore mining company operating in Sør-Varanger, Norway. Owned by the Tschudi Group-controlled Northern Iron, Sydvaranger operates an open-pit mine at Bjørnevatn and then hauls the ore with the Kirkenes–Bjørnevatn Line to Kirkenes for processing and shipping.