is a highway in Japan on the island of Honshū which runs from Nagai City in Yamagata Prefecture to Yamagata City, in the same prefecture. Route description Length: 45.3 km (28 mi) Origin: Nagai City Terminus: Yamagata City Major cities: Yamagata Municipalities passed through Yamagata Prefecture Nagai - Shirataka - Nan'yō - Kaminoyama - Yamagata References 348 Roads in Yamagata Prefecture