The route is 449.9 kilometers ( 279.6 mi ) long .
The route runs north -- south through Rogaland , Hordaland , and Sogn og Fjordane counties , following a more inland path than the European route E39 highway .
The route is 449.9 kilometers ( 279.6 mi ) long and runs north -- south through Rogaland , Hordaland , and Sogn og Fjordane counties , following a more inland path than the European route E39 highway .