Ōgi Pass

Ōgi Pass [尬尾山迂; おおぎさんれん] is a mountain pass which runs in a southern direction along Mount Taba and Mount Kumogi. It serves as the main road passage between Shinkō Prefecture and Mikei Prefecture, and has been used for centuries. The road traverses the Ikumo range at 530 metres, running from the southern ward of Futsukana to the town of ---.
In the late 10th century, the plateau through which the road runs was inhabited by vassals of the Hatake clan, who governed the region at that point. By the time the Shin had conquered southern Shinkō and its mountainous terrain, they required easy passage to the neighbouring provinces, and so constructed the pass in the 1170s. It has remained in use ever since.
The modern pass, which has concrete roads, signs, traffic lights and rails, was built very recently in the 1990s. Before then, the pass was mostly dirt road, and only navigable with a land vehicle or by foot.