This is the largest virgin forest in Norway, close to the border with Russia and Finland. The landscape is flat, with some ridges, and is covered by boreal coniferous forest (this being the westernmost limit of the Siberian taiga) and mires, with numerous fish-rich lakes.
Breeding species include at least 10 of the 15 species in Europe that are restricted to the boreal biome (when breeding)an eleventh such species, Emberiza rustica, may also breed irregularlyas well as a wide variety of wildfowl and waders, and Haliaeetus albicilla (a species of global conservation concern which, however, does not meet IBA criteria).
BirdLife International (2020) Important Bird Areas factsheet: Øvre Pasvik. Downloaded from http://www.birdlife.org on 29/01/2020.