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.
Ruoutevare mine
The Ruoutevare Iron Deposit is one of the largest known unexploited iron ore deposits in Sweden. Located in Kvikkjokk in Norrbotten County, Lapland, the deposit was discovered in the early 1970s by the Geological Survey of Sweden and found to have between 116 and 123 million tonnes of iron ore. In 2008 Beowulf Mining announced a maiden JORC compliant resource estimate for Ruoutevare with an inferred mineral resource estimate of 140 million tonnes of iron ore at a grade of 39.1%, with 5.7% titanium and 0.2% Vanadium