The reserve was formed in 1998 and consists of 103 hectares. You can walk through an old forest that has hardly been disturbed by man. The terrain is very uneven.
Along the humid bottom of the rift valley of Korphålorna, there is a stream and an abundance of species of mosses, lichens and wood-dependent fungi. If you are afraid of the Neck or the siren of the woods you must keep to the footpath!
In the forest there is a thick layer of mosses on the boulders and the large old spruce logs. Two species of rare fungi, both resembling brown skins, grow on the underside of the logs. The beard lichens hanging from the spruces signify the purity of the air. A species of lichen that tints the trunks a bright blue grey gives the forest a special character. The southern slope of the rift valley is in parts covered by a species of moss that indicates hundreds of years of shady and moist conditions.
For those interested in lichens the large Aspens are an El Dorado! On them you may find species such as the beautiful light green Tree Lungwort. On old rotting aspen logs there are interesting fungi as well as Baneberry and Alpine Enchanter’s Nightshade. On the higher parts of the reserve the layer of soil is thin. Old slow-growing pines stand on a carpet of grey and white reindeer lichen. On many of the trees there are signs of fire damage. You may find droppings of the Capercaillie and in hollow trees nests the Black Woodpecker. The land of the reserve is privately owned.