The last eruption from the Tseax River Cone produced a lava flow 22.5 km long and destroyed two Nisga'a villages and the death of at least 2000 Nisga'a people by volcanic gases and poisonous smoke (most likely CO 2).
The last eruption from the Tseax River Cone produced a 22.5 km long lava flow which destroyed two Nisga'a villages. Several Nisga'a people dug pits for shelter but approximately 2,000 Nisga'a people died due to volcanic gases and poisonous smoke (most likely CO 2).