Itoigawa Geopark, Japan
This geopark is located in the centre of Honshu Island and has an area of 746 km2. In 2009, it became a member of the Global Geopark Network. The geopark contains 24 geosites. The main highlights are the Shiyuchuan-Shizuoka Tectonic Line, the Yanhe Road geological relics, and the ‘Jiaochuanchuan Yushixia’ geological relics. At the site of the ‘Yinuchuan-Shizuoka Tectonic Line and Salt Road Geological Remains’, tourists can observe the challenging conditions and understand the human history and culture of this site, where jade, the typical oriental gemstone, is an important part of the land. The jade is a product of crustal movement during the island arc period and formed in the deep subduction zone during the Palaeozoic. It was then brought to the surface by tectonic events and was eventually transported to various locations by rivers and the sea. The Shiyuchuan area retains the traditional human life, history, and culture of the island arc and displays it vividly to the world.