Rørosⓘ (Norwegian) or Plaassja (Southern Sami)[3] is the administrative centre of Røros Municipality in Trøndelag county, Norway.

[4] Many modern-day inhabitants of Røros still work and live in the characteristic 17th- and 18th-century buildings which have led to its designation as a UNESCO World Heritage Site in 1980.

When King Carl XII was killed near Fredriksten on 30 November 1718, De la Barre retreated north to join the bulk of the army.

However, this ended in tragedy, when over 3,000 rather unprepared soldiers perished in the harsh weather conditions in the mountains northwest of Røros.

Røros and its people were made famous to Norwegians at the turn of the 20th century by semi-fictional author Johan Falkberget, who told the story of the mining community from the perspective of the hard-tested miners at the bottom of the social ladder.

[6] In 1644, the general manager of the mine at Kongsberg gave permission to exploit one lode of copper in the mountains near Rauhaammaaren.

[9] There is also an outdoor musical theatre performance played in Røros to commemorate the tragedy when the Swedish soldiers froze to death.

[10] The town of Røros was the filming location for Henrik Ibsen's play "A Doll's House", directed by Joseph Losey.