After the intersection with Highway 7B, the route enters the aboriginal district of Fuxing in Taoyuan City.

At Luofu village (羅浮, Rahao) in Fuxing, the highway passes through the intersection with County Road 118, a popular scenic route also known as LuoMa Highway (羅馬公路).

Starting from Fuxing, the road becomes a narrow and winding 1-lane highway as it crosses the Central Mountain Range.

The highway then enters Datong, Yilan, which is also an aboriginal township.

At some points (such as in Sileng (roughly at the 58-59km mark)) the road has an elevation of 1170 meters.