Idre
Idre lies in the mountain and forest country of northwestern Dalarna, close to the Norwegian frontier. Together with neighbouring Särna it once belonged to Norway and was attached to the parish of Elverum. In a wartime expedition from Älvdalen, Swedish forces occupied the two districts in 1644, and they remained under Sweden after the peace of Brömsebro the following year.
Despite Norwegian claims to the area, the precise frontier was not settled until the treaty of 1751. Idre and Särna remained Swedish, while a portion of the old Idre parish east of Lake Femunden went to Norway. An accompanying agreement regulated Sámi rights, including the movement of reindeer across the new boundary. The line divided a mountain landscape whose inhabitants had long travelled between seasonal grounds.