 The road begins at the European route E16 highway just south of Heradsbygda in Ringerike municipality and runs through the Sogna river valley to the village of Sokna (this part is called the "Soknedalsveien").It then continues further on to Hamremoen and up along the east side of the lake Krøderen to Gulsvik where it crosses the river and then follows the Hallingdalen valley through Flå, Nesbyen, Gol, Torpo, Ål, Hol, and Geilo (this part is called the "Hallingdalsveien").From there, the road begins its path across the Hardangervidda plateau via Ustaoset and Haugastøl, passing the Vøringsfossen waterfall while descending down into the Måbødalen valley in Eidfjord.