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The Vulcan's Thumb is a
rock pinnacle A pinnacle, tower, spire, needle or natural tower (german: Felsnadel, ''Felsturm'' or ''Felszinne'') in geology is an individual column of rock, isolated from other rocks or groups of rocks, in the shape of a vertical shaft or spire. Examples ar ...
in the
Pacific Ranges , photo = Mount Garibaldi (50997016501).jpg , photo_size = 280px , photo_caption = Mount Garibaldi massif as seen from Squamish , map = , map_image = South BC-NW USA-relief PacificRanges.png , ...
of southwestern
British Columbia British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...
, Canada. It is the largest of a number of slender pinnacles protruding from the sharp summit ridge of
Pyroclastic Peak Pyroclastic Peak is the second highest of the five named volcanic peaks immediately south of Mount Cayley in British Columbia, Canada. It is steep and rotten and is located southwest of Callaghan Lake and west of Whistler. It is part of the Pac ...
, which forms part of the
Mount Cayley Mount Cayley is an eroded but potentially active stratovolcano in the Pacific Ranges of southwestern British Columbia, Canada. Located north of Squamish and west of Whistler, the volcano resides on the edge of the Powder Mountain Icefield. I ...
massif.Kelman, M. C., Russell, J. K., Hickson, C. J. (2001). "Preliminary petrography and chemistry of the Mount Cayley volcanic field, British Columbia", ''Current Research Part A'',
Geological Survey of Canada The Geological Survey of Canada (GSC; french: Commission géologique du Canada (CGC)) is a Canadian federal government agency responsible for performing geological surveys of the country, developing Canada's natural resources and protecting the e ...
Paper 2001-A11, pp. 4, 5. Three eruptive stages built the Mount Cayley massif, the second of which is named after the Vulcan's Thumb.


See also

*
Cascade Volcanoes The Cascade Volcanoes (also known as the Cascade Volcanic Arc or the Cascade Arc) are a number of volcanoes in a volcanic arc in western North America, extending from southwestern British Columbia through Washington and Oregon to Northern Cali ...
*
Garibaldi Volcanic Belt The Garibaldi Volcanic Belt is a northwest–southeast trending volcanic chain in the Pacific Ranges of the Coast Mountains that extends from Watts Point in the south to the Ha-Iltzuk Icefield in the north. This chain of volcanoes is located i ...
* List of volcanoes in Canada *
Volcanism of Canada Volcanism, Volcanic activity is a major part of the geology of Canada and is characterized by many types of volcanic landform, including lava flows, volcanic plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, submarine volcano ...
*
Volcanism of Western Canada Volcanism of Western Canada has produced lava flows, lava plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, greenstone belts, submarine volcanoes, calderas, diatremes and maars, along with examples of more less common volcani ...


References

Volcanoes of British Columbia Two-thousanders of British Columbia Garibaldi Volcanic Belt New Westminster Land District {{BritishColumbiaCoast-geo-stub