International Route 203-CH is a branch line road going eastward from Lanco at Chile Highway 5 to Huahum Pass at the border to Argentina. Some settlements along the road includes: Lanco, Malalhue, Panguipulli and Neltume. The road is paved from Laco to the north side of Panguipulli Lake where it becomes a gravel road.
Map of Ruta 203, Regi%C3%B3n de los R%C3%ADos, Chile
References
Chile Route 203 Wikipedia(Text) CC BY-SA