Wikipedia
Dunderlandsdalen is a valley in the municipality of Rana in Nordland county, Norway. It reaches from just below the eastern Saltfjellet plateau about south of the Arctic circle at the mountain Bolna is situated in the uppermost boundary of the valley which then proceeds to the southwest all the way down to the Ranfjorden. Some of the minor side valleys include Plurdalen, Røvassdalen, Bjøllådalen, Grønfjelldalen and Virvassdalen. The valley also includes several villages such as Krokstrand, Bjøllånes, Storvoll, Dunderland, Eiterå, Nevernes, Storforshei, Nevermoen and Røssvoll.
The European route E06 highway passes through Dunderlandsdalen, following the Ranelva river. The Illhøllia Tunnel on the E6 highway, between Nevermoen and Røssvoll, was opened in 2002. The Nordlandsbanen railway also follows the river through the valley. Today, the valley only houses a small number of people, and it has two stations on the Nordlandsbanen railway: Dunderland Station and Bolna Station.