Tseax Cone

Tseax Cone is a small cinder cone in northwestern British Columbia, near Nisga'a communities in the Nass Ranges of the Hazelton Mountains. Formed within the last 800 years, it is now thought to have erupted in a single episode that built two nested volcanic structures through different styles of activity and sent four lava flows across about 36 square kilometres. The longest flow reached the Nass River and may briefly have blocked it. Tseax Cone is especially significant in Nisga'a history and oral tradition, which recount the destruction of villages and many deaths along the Nass River. Protected since 1992, it remains both a notable volcanic landscape and a memorial place.

British Columbia · Canada