Tjuoldavuobme borders on Sarek and Badjelánnda and is known for its old, untouched forest, abundant in wildlife. The Swedish name is the Tjuolta Valley. Vuobme is the Sámi word for deciduous forest, but in the lower parts of the valley there is also real old-growth pine and spruce forest.
Farther up in the valley, mountain birch forest covers the sides. Predators thrive in Tjuoldavuobme and the valley is an important area for species such as moose, bear and wolverine.
In Northern Sweden, above all in the areas bordering on the mountains, there are still many areas with more than ten percent old-growth forest.