Tatun Volcanoes (Chinese: 大屯火山群; pinyin: Dàtún Huǒshān Qún), a volcanic group of volcanoes located at northern Taiwan, is located 15 km north of Taipei, and lies to the west of Keelung. It just adjoins the northern coast of the Taiwan island. The volcano group was a result of episodic volcanisms between 2.8 and 0.2 Ma. As of 2005, some hydrothermal activities and gas fumaroles were active among these volcanoes.