1. If you are watching the "Vikings" TV series the Sami are allied with Lagaetha in Norway. These appear to be like American Indian Tipi structures but actually are lavvu structures for temporary dwelling in Norway by Sami herdsmen following their herds of Reindeer across Norway.

    I have stayed in the 1970s in Tipis in Northern California even when it was snowing out. Often if the tipi is big enough you can have a wood stove to heat it. when the fire dies down you want to have some warm down or other warm things to get under though. By having a dead air space between two layers of canvas or felt or deer skin (one on the outside of the poles and one inside) it can stay fairly warm inside especially with a wood stove. A yurt is the same principle. 

    I have never seen a deer skin tipi cover in my lifetime set up but have seen many canvas ones that worked quite well.

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    https://www.bing.com/search?q=finnmark+norway&form=hpcapt&filters=HpDate%3a"20180125_0800

    Sami lavvu structures, Finnmark, Norway

    It’s not a tipi, it’s a lavvu. We’re in Sami country here in Finnmark, Norway, and these temporary dwellings were used by the indigenous Sami people as they followed their reindeer herds across northern Scandinavia. The design has made its way into other symbols of the Sami culture, including the coat of arms for the municipality of Kautokeino and the design of the Sami Parliament building in Karasjok, Norway.
  2. Finnmark - Wikipedia

    https://en.wikipedia.org/wiki/Finnmark
    Finnmark is the northernmost and easternmost county in Norway (Svalbard is not considered a county). By area, Finnmark is Norway's largest county; even larger than the neighboring country of Denmark. However, with a population of about 75,000, it is …