Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • 847 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 61.38°N
  • 141.75°W

  • 5005 m
    16416 ft

  • 315030
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Churchill.

The Global Volcanism Program has no Weekly Reports available for Churchill.

The Global Volcanism Program has no Bulletin Reports available for Churchill.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0847 ± 1 years Unknown Confirmed 6 Tephrochronology WRAe
0060 ± 200 years Unknown Confirmed 6 Radiocarbon (uncorrected) WRAn

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

A U.S. Geological Survey climbing party ascends the Klutlan Glacier en route to 4766-m-high Mount Churchill. Their field studies led to the recent discovery that this volcano was the site of two of the most voluminous eruptions in North America in the past 2000 years. The White River Ash, two voluminous ash layers that extend across most of Canada's southern Yukon, originated from the summit caldera of Churchill volcano, which forms a twin volcano with 5005-m-high Mount Bona. The two peaks comprise the highest volcano in the United States.

Photo by Game McGimsey (U.S. Geological Survey, Alaska Volcano Observatory).
See title for photo information.

Smithsonian Sample Collections Database

There are no samples for Churchill in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites