The mountain birch is a sub species of the common birch and is found in the mountain areas of southern and northern Norway. The trees grow in areas up to 1580 meters above sea level where they make up the tree line. The birch wood and bark is known for its good qualities as firewood. In Norway the birch bark was used as roof material and the birch ash was traditionally used as reagent when preparing the typical Scandinavian fish-dish ‘lutefisk’.
From album: World Forest Ecosystems