It's easy to be deceived looking at a map or in the experience of traversal, but the entire country of Norway (~149,000 sq mi) is a little smaller in land area than the U.S. state of California (~164,000 sq mi). Despite it's size, a 16 hour train ride (or drive) will only get you from Oslo in the South to about half way up its length (to Mo i Rana, just below Arctic Circle). This phenomena is attributable to a general lack of high speed infrastructure resulting from the wild topography and un-accommodating weather found throughout the land. The results of this have historically been the isolation of communities and the development of hundreds of drastically different dialects among the here).
On a "short" drive, just reaching three hours (110 miles) into Telemark's mountains from downtown Oslo, some sights illustrate these points.
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GPS gave us this as a main highway.
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Happened to be mostly a trucking route, and they were widening the road.
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People actually live out here.
The sun reached this part of the valley around 11am.
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This hydro power station started the town of Rjukan in the early 1990s - located in a valley that is too deep and steep for the sun to reach 6 months out of the year.