Northern Cordilleran Volcanic Province The Northern Cordilleran Volcanic Province, formerly known as the Stikine , is a geologic province defined by the occurrence of Miocene to volcanoes in the Pacific Northwest of North America. This belt of volcanoes extends roughly north- northwest from northwestern and the Panhandle through to the Southeast Fairbanks Census Area of far eastern Alaska, in a corridor hundreds of kilometres wide. It is the most recently defined volcanic province in the Western Cordillera. It has formed due to extensional cracking of the North American —similar to other on-land extensional volcanic zones, including the Basin and Range Province and the East African . Although taking its name from the Western Cordillera, this term is a geologic grouping rather than a geographic one. The southmost part of the NCVP has more, and larger, volcanoes than does the rest of the NCVP; further north it is less clearly delineated, describing a large arch that sways westward through central Yukon.At least four large volcanoes are grouped with the Northern Cordilleran Volcanic Province, including in the , the volcanic complex on the Highland, and and on the Nahlin Plateau. These four volcanoes have volumes of more than 15km3, the largest and oldest which is Level Mountain with an area of 1800km2 and a volume of more than 860km3. Apart from the large volcanoes, several smaller volcanoes exist throughout the Northern Cordilleran Volcanic Province, including cinder cones which are widespread throughout the volcanic zone. Most of these small cones have been sites of only one volcanic eruption; this is in contrast to the larger volcanoes throughout the volcanic zone, which have had more than one volcanic eruption throughout their history.

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