Østerdalen

Østerdalen () is a valley and traditional district in Innlandet county, in Eastern Norway. This area typically is described as the large Glåma river valley as well as all its tributary valleys. Østerdalen is often subdivided into Nord-Østerdal in the north, and Sør-Østerdal in the south. The more mountainous northern half of Østerdalen includes the municipalities of Rendalen, Alvdal, Folldal, Tynset, Tolga, and Os. The more forested southern half includes the municipalities of Elverum (which includes district's largest town, Elverum), Stor-Elvdal, Engerdal, Trysil and Åmot. Østerdalen historically also included Särna and Idre, which is now in Sweden.

==Geography== Østerdalen is quite wide in most places. Østerdalen is characterized by tranquil landscapes and rounded mountains. The lower valley is mostly covered by pine forests and more rolling hills. Typical of Østerdalen is that large parts of the forest floor are covered with reindeer moss, a variety of lichen. Further up in the valley has higher mountains and less forests and more farming areas.