[5] In the first year of the Jōgan Era (859), Ennin, a Buddhist monk of the Tendai sect founded the temple Ryōzen-ji (not to be confused with Ryōzen Shrine).

[6] Acting in support of the Southern Court, Kitabatake Akiie fortified the temple of Ryōzen-ji and turned it into his residence, which he proclaimed to be Ryōzen Castle.

[6] The site was excavated in 1980, with a large amount of artifacts discovered, including Seto ware pottery and coins from Song dynasty China.

The "tengu sumo wrestling hall" (天狗の相撲) is a rock protruding towards the West with a flat surface the size of eight tatami mats.

There is a low hanging rock to pass under before arriving at a large flat area where it is believed that Buddhist rituals were once performed.

[10] The entrance to the main path up the mountain is located in a parking lot connected to the Nakamura Highway (Route 115) and the Central Tohoku Expressway.