The old Pilgrims' Route between Oslo and Nidaros Cathedral in Trondheim, Norway, was reopened the summer of 1997. Since then many pilgrims have wandered to this ancient pilgrimage site. The Pilgrim's Route, (Pilegrimsleden) also known as St. Olav's Way or the Old Kings' Road, was a pilgrimage route to the Nidaros Cathedral. The main route is approximately 640 kilometres (400 mi) long, crossing the mountains of Dovrefjell.