The Hardangervidda has been occupied for thousands of years; several hundred nomadic Stone Age settlements have been found in the area, most likely related to the migration of the reindeer. Ancient trails cross the plateau, linking western and eastern Norway. One example is the Nordmannsslepa linking Eidfjord and Veggli in the Numedal valley with Hol and Uvdal. It is still a key transit route between Oslo and Bergen. The Bergen Line and the main Highway 7 cross the plateau.