Røros is the administrative centre of Røros municipality in Trøndelag county, Norway. The town is along the river Hyttelva and along the Rørosbanen railway line, about 10 kilometres south of the villag…Røros is the administrative centre of Røros municipality in Trøndelag county, Norway. The town is along the river Hyttelva and along the Rørosbanen railway line, about 10 kilometres south of the village of Glåmos and about the same distance north of the village of Os in neighboring Innlandet county. The 3.19-square-kilometre town has a population of 3,865 and a population density of 1,212 inhabitants per square kilometre.