Hardangervidda National park lay in the municipality Buskerud, Telemark and Hordaland, and is North-Europa biggest mountain plateau. Most of it is flat widths, but at the west side of the Hardangervidda is it more hilly. On he plateau it is big pissibles for hiking, fishing and hunting. You can get on the Hardangervidda all year round. In the winter the tracks are marked with sticks (just when the DNT cabin in the end is open). In the summer (normally starts in the end of June). Is it possible to hike on the Hardangervidda. (Take a look at www.ut.no for more information when the different DNT cabin are open/staffed)
Do you need the DNT key? You can get it at the Geilo tourist information.