Rällingsberg mining area (Swedish: Rällingsbergs gruvor) is an area with four defunct iron mines outside the community of Långshyttan in the parish of Husby in Hedemora Municipality, Dalarna County, Sweden.
The former mining area now forms part of the Husbyringen nature and culture trail.
With a borrowed mining compass he found a widespread magnetic field east of Lake Rällingen near a piece of farmland called Gruvvreten (swedish for mining field).
Klosters AB established a narrow-track railway in 1891 for its cargo between the use at Långshyttan and Stjernsund.
[7] To have access to its own ore reduced the cost of the company at Kloster considerably, partly compensating for the lack of own charcoal.