Wells Gray-Clearwater

Photo of this volcano
Google Earth icon
  Google Earth Placemark
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 52.33°N
  • 120.57°W

  • 2015 m
    6609 ft

  • 320150
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Wells Gray-Clearwater.

The Global Volcanism Program has no Weekly Reports available for Wells Gray-Clearwater.

The Global Volcanism Program has no Bulletin Reports available for Wells Gray-Clearwater.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
320150

1550 CE

2015 m / 6609 ft

52.33°N
120.57°W

Volcano Types

Pyroclastic cone(s)

Rock Types

Major
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
716
716
716
18,280

Geological Summary

The Wells Gray-Clearwater volcanic field in the Quesnel Highland of east-central British Columbia contains basaltic cones and lava flows of early Pleistocene-to-Holocene age. Pleistocene deposits include plateau-capping lava flows, subglacial mounds and tuyas, and hyaloclastites. Buck Hill Cone was erupted during the latest Pleistocene during the waning stages of the Fraser glaciation. Holocene eruptions took place in the Spanish Creek, Ray Lake and Kostal Lake areas (Hickson and Souther, 1984), forming cinder cones and producing lava flows that traveled up to 14 km. A lava flow from Dragon cone is radiocarbon dated at about 7600 years ago, and flows from Flourmill, Kostal, and Spanish Lake Cones rest on glaciated bedrock without an intervening paleosol, suggesting an early Holocene age. The latest eruption took place from Kostal cone about 400 years ago (Hickson and Edwards, 2001).

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Campbell R B, 1961. Quesnel Lake, west half, British Columbia. Geol Surv Can Map, 3-1961.

Campbell R B, 1963. Quesnel Lake, east half, British Columbia. Geol Surv Can Map, 1-1963.

Campbell R B, 1967. Canoe River, west half, British Columbia. Geol Surv Can Map, 15-1967.

Campbell R B, Tipper H W, 1971. Geology of Bonaparte Lake map-area, British Columbia. Geol Surv Can Mem, 363: 1-100.

Davis N F G, 1930. Clearwater Lake area, British Columbia. Geol Surv Can Summary Rpt, Part A: 274-293.

Hickson C J, 1986. Quaternary volcanism in the Wells Grey-Clearwater area, east central British Columbia. Unpublished PhD thesis, Univ British Columbia, 357 p.

Hickson C J, Edwards B R, 2001. Volcanoes and Volcanic Hazards in Canada. In; Brooks G R (ed) {A Synthesis of Geological Hazards in Canada}, Geol Surv Can Bull, 548: 1-248.

Hickson C J, Soos A, Wright R, 1994. Catalogue of Canadian volcanoes. Geol Surv Canada Open-File Rpt.

Hickson C J, Souther J G, 1984. Late Cenozoic volcanic rocks of the Clearwater-Wells Gray area, British Columbia. Can J Earth Sci, 21: 267-277.

Holland S S, 1976. Landforms of British Columbia, a physiographic outline. Brit Columbia Dept Mines Petrol Resour Bull, 48: 1-138 (2nd printing).

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Metcalf P, 1987. Petrogenesis of Quaternary alkaline lavas in Wells Gray Provincial Park, B.C. and constraints on the petrology of the subcordilleran mantle. Unpublished PhD thesis, Univ Alberta, 395 p.

Wood C A, Kienle J (eds), 1990. Volcanoes of North America. Cambridge, England: Cambridge Univ Press, 354 p.

Eruptive History


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


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1550 (?) Unknown Confirmed   Dendrochronology Kostal Cone
5650 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) Dragon Cone

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.


Synonyms

Clearwater Cone Group

Cones

Feature Name Feature Type Elevation Latitude Longitude
Buck Hill Cone 1585 m 51° 48' 0" N 119° 59' 0" W
Dragon
    Falls Creek
Cone 1830 m 52° 15' 0" N 120° 1' 0" W
Fiftytwo Ridge Tuya 2015 m 51° 56' 0" N 119° 53' 0" W
Flatiron Cone 730 m 51° 53' 0" N 120° 3' 0" W
Flourmill Cone 1495 m 52° 3' 0" N 120° 19' 0" W
Gage Hill Tuya 1090 m 52° 3' 0" N 120° 1' 0" W
Hyalo Ridge Tuya 2012 m 52° 7' 0" N 120° 22' 0" W
Ida Ridge Cone 1981 m 51° 48' 0" N 119° 56' 0" W
Jack's Jump Cone 1895 m 52° 7' 0" N 120° 3' 0" W
Kostal Cone 1440 m 52° 10' 0" N 119° 56' 0" W
Mcleod Hill Tuya 1250 m 52° 1' 0" N 120° 1' 0" W
Mosquito Mound Tuya 1065 m 52° 1' 0" N 120° 11' 0" W
Pillow Creek Cone 1829 m 52° 1' 0" N 119° 50' 0" W
Pointed Stick Cone 1820 m 52° 14' 0" N 120° 5' 0" W
Pyramid Mountain Cone 1095 m 51° 59' 0" N 120° 6' 0" W
Spanish Bonk Cone 1770 m 52° 8' 0" N 120° 22' 0" W
Spanish Lake
    Spanish Creek
Cone 1770 m 52° 4' 0" N 120° 19' 0" W
Spanish Mump Cone 1800 m 52° 10' 0" N 120° 20' 0" W
Trophy Mountain Cone 51° 1' 0" N 119° 49' 0" W
Whitehorse Bluffs Cone 775 m 51° 54' 0" N 120° 7' 0" W

Craters

Feature Name Feature Type Elevation Latitude Longitude
Ray Mountain Fissure vent 2050 m 52° 14' 0" N 120° 7' 0" W

Photo Gallery


The Wells Gray-Clearwater volcanic field in the Quesnel Highland of east-central British Columbia contains basaltic cones and lava flows of early Pleistocene-to-Holocene age. Dragon Cone (above) produced lava flows that traveled 14 km down Falls Creek to the Clearwater River. Pleistocene deposits of the volcanic field include plateau-capping lava flows, subglacial mounds and tuyas, and hyaloclastites. Several cones were active during the Holocene, and the latest eruption took place from Kostal cone about 400 years ago.

Photo by Cathie Hickson (Geological Survey of Canada).

Smithsonian Sample Collections Database


A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

Large Eruptions of Wells Gray-Clearwater Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.