Jo-yama Mountain

Jo-yama Mountain

Jo-yama Mountain is a Geosite of the Izu Peninsula UNESCO Global Geopark.
It is a huge, 342-meter-high rock mountain on the west side of Kano River in Izunokuni-shi.
The contrast between its rough, rocky surface and Kano River has been selected as one of the “100 Scenes of Nature in Shizuoka Prefecture.”
The bulky rock mountain is a “volcanic plug” created by magma that slowly cooled down and solidified right beneath an underwater volcano between 10 and 2 million years ago, during a period in which an early form of the Izu Peninsula was in shallow sea.
Due to its mysterious looks, people of ancient times regarded this mountain as a special mountain on top of which a mountain god resided.
Today, it is a popular spot for outdoor activities such as hiking and rock-climbing.