 The municipality nearly surrounded the small enclave that was the mining town of Røros and it stretched all the way southeast to the lake Femunden and the Swedish border.The administrative centre of the municipality was located in the town of Røros where Røros Church is located.The rural part of the parish of Røros was established as the municipality of "Røros landsogn" in 1926 when the large municipality of Røros was split into four separate municipalities