Description Available in: Mjøndalen IF Fotball – commonly known as Mjøndalen IF, and (especially locally) Mjøndar'n or MIF – is the football department of Mjøndalen IF. Founded in 1910, the club is located in Mjøndalen, Viken, Norway. The team plays its home matches in the 4,350-capacity Consto Arena. Mjøndalen competes in Eliteserien, the top tier in the Norwegian football league system.