Breidset is a village in Tinn Municipality, in Telemark, Norway. Breidset lies at 639 m above sea level, in the Blefjell mountains. The nearest city is Kongsberg, 42 km to the east. Among the landmarks around are Vemork (30 km), Flesberg Stave Church (23 km) and Rollag Stave Church (20 km). Among the natural features are Rjukan Falls (31 km) and Bletoppen (10.7 km).
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