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.
Moi, Norway
The largest employer in Moi is NorDan, which is the largest window factory in northern Europe. After the Industrial Revolution, Moi developed a relatively large timber industry. Moi is also home to Moen Bjøllefabrikk, a bell manufacturer, which was the official supplier of animal bells used to cheer on athletes at the Lillehammer 1994 Winter Olympics, and in partnership with Cowbells.com for the Salt Lake City 2002 Winter Olympics. Additionally, Norway's only active clog factory is located just north of Moi in the village of Eik.