Geography of Yamanashi Prefecture

Aokigahara (), also known as the , is a forest on the northwestern flank of the Mount Fuji on the island of Honshu in Japan, thriving on of hardened lava laid down by the last major eruption of Mount Fuji in 864 CE. The western edge of Aokigahara, where there are several caves that fill with ice in winter, is a popular destination for tourists and school trips. Parts of Aokigahara are very dense, and the porous lava rock absorbs sound, contributing to a sense of solitude that some visitors attribute to the forest.

central part of the region Chūbu on central Honshū in Japan