National Park Gressamoen was claimed as a protected area in 1970 in order to preserve the wild woods of spruce trees. Some of these trees are as old as 200 – 550 years. National Park Gressamoen is formed into hills reaching the altitude from 600 to 800 meters. Flora consists of around 200 species of vascular plants. Fauna includes animals like lynx, mink, reindeer, sometimes moose, fox, deer and pine marten.
National Park Gressamoen is well accessible from the town of Myrset on a forest path up the river Lura in direction to the farm Gressamoen. There are no marked tourist paths, camping and passing through is however possible.