Wells Gray-Clearwater

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  • 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.

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).

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
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).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

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.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Population

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

Affiliated Databases

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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.