Iskut-Unuk River Cones

From Wikipedia
Iskut-Unuk River Cones
Iskut-Unuk River Cones is located in British Columbia
Iskut-Unuk River Cones
Iskut-Unuk River Cones
Location of the Iskut-Unuk River Cones along the British Columbia-Alaska border
Highest point
Elevation1,880 m (6,170 ft)
Coordinates 56°35′0″N 130°33′0″W / 56.58333°N 130.55000°W / 56.58333; -130.55000
ISKUT-UNUK RIVER CONES Latitude and Longitude:

56°35′0″N 130°33′0″W / 56.58333°N 130.55000°W / 56.58333; -130.55000
Location British Columbia, Canada
Parent range Boundary Ranges ( Coast Mountains)
Age of rock Pleistocene-to- Holocene
Mountain type Volcanic field
Volcanic arc/ belt Northern Cordilleran Volcanic Province
Last eruption1800 (?)

The Iskut-Unuk River Cones are a group of eight small basaltic centres at the southern end of the Northern Cordilleran Volcanic Province in the Boundary Ranges of the Coast Mountains, in western North America. The lava flows date back 70,000 years, but the subaerial vents produced cinder cones and lava flows that were probably all active between about 9,000 and a few hundred years ago. The last lava flows were erupted from The Volcano about 150 years ago. Iskut Canyon Cone produced at least 10 thick lava flows which initially dammed the Iskut River.


The name of these in the Tlingit language is Seikhulé, referring to the mountains not being flooded during Aangalakhú (the Great Flood) and they were one of the high peaks used as a refuge during that time.

See also


  • "Iskut-Unuk River Cones". Global Volcanism Program. Smithsonian Institution.
  • Catalogue of Canadian volcanoes: Iskut River
  • Alaska Volcano Observatory: Iskut-Unuk River Cones