Särna (Elfdalian: Sjär’n) is a locality situated in Älvdalen Municipality, Dalarna County, Sweden with 719 inhabitants in 2010. History. The two parishes Särna and Idre were originally part of Norway but were occupied by an expedition of Swedish peasants from Älvdalen in 1644. The 1645 Treaty of Brömsebro was ambiguous regarding the status of the parishes, but when the exact path of the border was to be decided in 1751, Norway accepted a border west of Idre and Särna.
https://en.wikipedia.org/wiki/S%C3%A4rna