Japan National Route 18 partially coincident with Nagano Prefectural Road Route 9
Route data
Length: 193.9 km (120.5 mi)
Origin: Takasaki, Gunma (originates at junction with National Route 17)
Terminus: Jōetsu, Niigata (ends at Junction with National Route 8 and National Route 350)
Major cities: Komoro, Ueda, Chikuma, Nagano
partially overlapping with partially intersecting with partially sharing with partially matching with partially aligning with