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Mount McGuire is a mountain summit located in the Cascade Mountains of southwestern British Columbia, Canada. It is situated north of the
Catalogue of Canadian volcanoes: Franklin Glacier
During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. The U-shaped cross section of the river valleys is a result of recent glaciation. Uplift and faulting in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the North Cascades area. The North Cascades features some of the most rugged topography in the
Established rock climbing routes on Mount McGuire:
* Southeast Ridge - First Ascent 1906
* Northeast Ridge -
* North Ridge-
* Northwest Ridge/North Face -
* South Face -
Mount McGuire
{{DEFAULTSORT:McGuire Two-thousanders of British Columbia Canadian Cascades Pemberton Volcanic Belt Cascade Range North Cascades Yale Division Yale Land District
Canada–United States border
The border between Canada and the United States is the longest international border in the world. The terrestrial boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is long. The land border has two sections: Can ...
, southeast of Chilliwack, and northwest of Canadian Border Peak, which is its nearest higher peak. Precipitation runoff from the peak drains into tributaries of the Chilliwack River. The steep western slope of the peak plunges 1800 metres into Tamihi Creek. The mountain was originally known as ''Tamihi'', a Halkomelem name that means "deformed baby finishes." Such infants were sometimes left exposed on the mountain to die. The mountain's name was labelled on 1917 map as ''McGuire'', and officially adopted on October 6, 1936, by the Geographical Names Board of Canada
The Geographical Names Board of Canada (GNBC) is a national committee with a secretariat in Natural Resources Canada, part of the Government of Canada, which authorizes the names used and name changes on official federal government maps of Canada ...
. The peak was first climbed in 1906 by James J. McArthur and survey party via the Southeast Ridge.
Geology
Mount McGuire is related to the Chilliwack batholith, which intruded the region 26 to 29 million years ago after the major orogenic episodes in the region. This is part of the Pemberton Volcanic Belt, an eroded volcanic belt that formed as a result ofsubduction
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the ...
of the Farallon Plate starting 29 million years ago.During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. The U-shaped cross section of the river valleys is a result of recent glaciation. Uplift and faulting in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the North Cascades area. The North Cascades features some of the most rugged topography in the
Cascade Range
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...
with craggy peaks and ridges, deep glacial valleys, and granite spires. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to various climate differences which lead to vegetation variety defining the ecoregions in this area.
Climate
Based on the Köppen climate classification, Mount McGuire is located in the marine west coast climate zone of westernNorth America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
. Most weather fronts originate in the Pacific Ocean, and travel east toward the Cascade Range
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...
where they are forced upward by the range ( Orographic lift), causing them to drop their moisture in the form of rain or snowfall. As a result, the Cascade Mountains experience high precipitation, especially during the winter months in the form of snowfall. Temperatures can drop below −20 °C with wind chill factors below −30 °C. The months July through September offer the most favorable weather for climbing McGuire.
Climbing Routes
Established rock climbing routes on Mount McGuire:
* Southeast Ridge - First Ascent 1906
* Northeast Ridge -
* North Ridge-
* Northwest Ridge/North Face -
* South Face -
See also
*Geography of the North Cascades
The geography of the North Cascades describes a range of rugged mountains in British Columbia, Canada and Washington, United States. In Canada, the range is officially named the Cascade Mountains but is commonly referred to as the Canadian Cas ...
* Geology of British Columbia
References
External links
* WeatherMount McGuire
{{DEFAULTSORT:McGuire Two-thousanders of British Columbia Canadian Cascades Pemberton Volcanic Belt Cascade Range North Cascades Yale Division Yale Land District