The Eruption History of
Datoon Volcanic Mountains

Geologists suspect that there are two main phases to the eruption of the Yangmingshan National Park:

　First phase, first age, took place around 2.8 million years ago, near the region of Wonlee.

　First phase, second stage took place around 2.5 million years ago, and was a relatively mild eruption, forming what is now the Dahuang Mouth.

　Phase two begin a lot later, around 800,000 years ago, and this time the eruptions were gigantic, which is responsible for most of the volcanoes we see here today, including the Sevenstar series.The Datoon series are also formed in this phase, up until 200,000 years ago. But we still see some occasion glimpse of these past historic happenings when we come visit the region.