Tysfjord is the deepest fjord in northern Norway and the second deepest in Norway. It has a depth of nearly 900 meters in its central parts, but at its mouth, just 200 meters. Such deep contrasts are typical of fjords and genuine because they are carved out of bedrock by the ice age glacier masses. The ice was thinner at the front and eroded more there, which established the threshold to the sea.
During the autumn it becomes the world's richest herring waters where large shoals of herring congregate in the regions of West Fjord, Ofotfjord and Tysfjord. The herring become food not only for humans but also hungry sea eagles and large pods of killer whales.
Fjords are surrounded by dramatic granite mountains with Stetind, with its height of 1391 meters, being the best known. A large section of bedrock around the fjord is the bedrock outside the mountain range
Tysfjord is a cutting edge of Norway as seen from the Norwegian sea.There are ‘five fingers’ of fjords at Hauköyfjorden, Indre Tysfjord, Mann Fjord, Grunnfjorden, and Hellemofjorden. At Hellemofjorden Norway is the narrowest point with only 6.3 kilometers between the Norwegian Sea and Sweden. In the inner parts of the fjord arms we meet the young mountain range.
From Kjöpsvik, with its limestone bedrock and cement factory, you can travel by boat to Indre Tysfjord and Sörfjorden.
Áhkajávrre Suorva or magazine is a giant reservoir regulated by Suorva dam and the power plant in Vietas. With the arrival of the hydro power era, the valley became an industrial landscape with regulation of the water in the lake. Before the damming period there were several lakes in the valley.
Porjus power plant became operational in 1914. The first magazine was built in 1919, to regulate the energy produced in Porjus. Since then, the dam has been heightened three times, the last 1972.
In 1972 Vietas power station was inaugurated following in 1978 the Ritsem power plant. To facilitate the construction and running of both Vietas and Ritsem a road was constructed.
As result of this hydropower development, we have today in the middle of the high mountains Suorva magazine, where huge areas of mountain birch forest, moors, lakes and streams result in a damned lake where there water levels
can change by 30 meters.