Mount Sentsū has an elevation of 1,142 m (3,747 ft) and is one of the highest peaks in the Chūgoku Mountain Range and part of the Hiba-Dogo-Taishaku Quasi-National Park.

According to the Kojiki,[4] Mount Sentsū is the scene of the legendary battle between Susanoo and Yamata no Orochi.

Yamata no Orochi's corpse produced Kusanagi-no-Tsurugi, a Japanese sword and one of three Imperial Regalia of Japan that legitimate the rule of the Emperor.

Susanoo then presented the sword to his sister, the Sun Goddess Amaterasu, who passed it to her descendants, the Imperial family of Japan.

It is accessible from the Shōyama Station in Nichinan via the JR West Hakubi Line.