Iskut-Unuk River Cones

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 56.58°N
  • 130.55°W

  • 1880 m
    6166 ft

  • 320090
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Iskut-Unuk River Cones.

The Global Volcanism Program has no Weekly Reports available for Iskut-Unuk River Cones.

The Global Volcanism Program has no Bulletin Reports available for Iskut-Unuk River Cones.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1904 ] [ Unknown ] Uncertain     Lava Fork
1800 (?) Unknown Confirmed   Radiocarbon (uncorrected) Lava Fork
1590 ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) Lava Fork
0620 BCE ± 150 years Unknown Confirmed   Radiocarbon (uncorrected) Iskut River
1830 BCE ± 300 years Unknown Confirmed   Radiocarbon (uncorrected) Iskut River
3450 BCE ± 150 years Unknown Confirmed   Radiocarbon (uncorrected) Iskut River
4700 BCE ± 300 years Unknown Confirmed   Radiocarbon (uncorrected) Iskut River
6830 BCE ± 150 years Unknown Confirmed   Radiocarbon (uncorrected) Iskut River

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


Shallow ponds dot the surface of valley-filling lava flows of the Iskut-Unuk volcanic field. The flows traveled south 5 km where they crossed the border into Alaska and dammed the Blue River, forming several small lakes and traveling a total of approximately 22 km. The Iskut-Unuk River Cone Group consists of eight small basaltic centers at the southern end of the Stikine volcanic belt that range in age from about 70,000 to only a few hundred years old and form one of the youngest volcanic fields in Canada.

Photo by Ben Edwards, 1997 (Dickinson College, Pennsylvania).
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for Iskut-Unuk River Cones in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites