The small nature reserve Reivo comprises ten times ten kilometers of Lappish wilderness north of Arvidsjaur. Marten and capercaillie, bear and golden eagle feel well in the deep needle forest. Reivo has been "haunted" by an unusually large number of forest fires - a blessing for some plant and animal species that need fires to survive. About two kilometers southwest of Auktsjaur turn off from Väg 45 on a smaller road that leads to the northwest. After about ten kilometers you are in the reserve, where you can find information boards, hiking trails and maybe one or the other forest spirit.