The seasonal land use is divided into five seasons, which in turn are divided into two categories according to function and grazing intensity. Summer pastures are areas used by reindeer in the summer. Summer pastures are also divided into categories: Summer pasture 1 – High summer land, central parts generally above the tree line where reindeer remain around midsummer in order to meet their need for grazing, quiet conditions, cooling and as few insects as possible within short distances. Summer pasture 2 – Lower-lying summer land, less central and/or less intensively used areas. The use of pastureland will vary from year to year within the same area. The classification system is applicable to reindeer husbandry all over the country. The annual variations in factors such as weather and pasture conditions means that the delimitation of the seasons has to be somewhat broad and approximate.
The area boundaries are indicative as information for the reindeer industry, public administration, the planning authorities and developers. The content of the datasets is not binding for future use. Reindeer husbandry data is important when assessing the location of elements such as reading facilities, power lines, wind farms and hydroelectric power stations, mineral activities, cabin construction, roads and infrastructure, development of recreational activities and planning of military exercises. The reindeer industry and other industries involving livestock on outfield pastures must be adjusted to suit one another.