In Swedish Lappland, large national parks and nature reserves include forests with exceptional biodiversity values. While they are located in the ancient cultural landscapes of the indigenous Sami, this aspect has rarely been considered in the process of nature protection. In this study, we discuss how the preservation of Sami cultural values can be introduced and developed in forest reserves. We do this by reviewing recent research on the cultural legacy that the Sami have left in the boreal forest and discuss why so much of this legacy is found in the large areas of ecologically valuable forest that still exist in Lappland. We find that the Sami left deep imprints in the trees, in the forest structure, and in the archaeological record. We...