Mt. Daigatake

Mt Daigatake is located in the Hakone highlands of Sengokuhara at an elevation of 1,045 meters above sea level. The western lower slope of the mountain is popular with visitors for the vast pampas grass fields and there is now marked trail to the summit.


It is a bowl-shaped mountain that together with the surrounding mountains, is designated as a part of the Fuji-Hakone-Izu National Park. While the foot of the mountain is crowded with tourists on a walking path through the pampas grass fields, the trail to the summit of Mount Daigatake is not maintained, and the whole mountain is covered with thick forest.

The mountain is a lava dome formed between about 40,000 and 10,000 years ago when the central volcanic cone group of Mount Hakone was active. At that time, a pyroclastic flow from Mt. Kamiyama dammed up the Hayakawa River on the north side of Mt. Daigatake. About 3,100 years ago, a debris avalanche from Mt. Kamiyama buried the Sengokuhara area and turned it into a plateau, damming up the area around the lake’s edge and giving birth to the present Lake Ashinoko.