Hakkōda Mountains

The Hakkōda Mountains (八甲田山系, Hakkōda-sankei) is a volcanic mountain range that lies to the south of Aomori city in Aomori Prefecture, Japan. The range consists of more than a dozen stratovolcanoes and lava domes arranged into two volcanic groups.^[1] The Northern Hakkōda Volcanic Group emerges from the rim of a 8-km wide caldera that dates back to the Pleistocene.^[1] The Southern Hakkōda Volcanic Group predates the caldera.^[2]

• http://en.wikipedia.org/wiki/Hakkōda Mountains