Lake Arrowhead Road
Runs from Hwy 18 near Sky Forest to Hwy 138 near Lake Silverwood
This roadway is mostly used as a connector from Hwy 18 (Rim of the World Drive) to Lake Arrowhead. North of the lake, the roadway turns to dirt for a few miles until it reaches Summit Valley. There, it becomes paved until Hwy 138. The dirt portion was the last section of State Highway in California to be unpaved before it was closed in 2008.