Mount Cheam
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Cheam Peak or Mount Cheam ( and ; , the local
indigenous language An indigenous language, or autochthonous language, is a language that is native to a region and spoken by its indigenous peoples. Indigenous languages are not necessarily national languages but they can be; for example, Aymara is both an indigen ...
, referring to the lowland below. The Halqemeylem name for the mountain is Lhílheqey – ''Theeth-uhl-kay'' – from the word ''Lhelqey'' – "glacier" or "rehydrate",BC Names/GeoBC entry "Cheam Peak"
/ref> referring to the west ridge of the peak).


Description

Cheam's structure is pyramidal, with north, northwest, south and east faces. While the north face is the steepest, the northwest face is also sheer. A prominent spur ending in the sub peak called "Red Pyramid" or "Red Tower" () divides the two northern faces. The western
ridge A ridge is a long, narrow, elevated geomorphologic landform, structural feature, or a combination of both separated from the surrounding terrain by steep sides. The sides of a ridge slope away from a narrow top, the crest or ridgecrest, wi ...
divides the northwest and south faces; below the gently sloping south face is the subalpine bowl of Spoon Lake. The southeast ridge ascends from the col with Lady Peak, two km to the southeast; Jones Lake is below the east face. A sharp ridge divides the east and north faces. Cheam is the farthest northerly peak of a small group of peaks known as the Cheam Range, which form a subrange of the
Skagit Range The Skagit Range ( , ) is a subrange of the Cascade Range in southwestern British Columbia, Canada and northwestern Washington, United States, which are known in Canada as the Canadian Cascades or, officially, the Cascade Mountains. It is also k ...
of the Canadian Cascades mountains (which are the Canadian extension of the
North Cascades The North Cascades are a section of the Cascade Range of western North America. They span the border between the Provinces and territories of Canada, Canadian province of British Columbia and the U.S. state of Washington (state), Washington and ...
of
Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...
). It dominates the eastern
Fraser Valley The Fraser Valley is a geographical region in southwestern British Columbia, Canada and northwestern Washington State. It starts just west of Hope in a narrow valley encompassing the Fraser River and ends at the Pacific Ocean stretching from th ...
, rising above Bridal Falls and
Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he recei ...
just east of
Chilliwack Chilliwack ( ) is a city of about 100,000 people and in the Canadian province of British Columbia. It is located about east of the City of Vancouver in the Fraser Valley. The enumerated population is 93,203 in the city and 113,767 in the gr ...
,
British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
. It and three sister peaks form a group known as the Four Sisters or Four Brothers, which are part of the mountain wall framing the
Lower Mainland The Lower Mainland is a geographic and cultural region of the mainland coast of British Columbia that generally comprises the regional districts of Metro Vancouver and the Fraser Valley. Home to approximately 3.05million people as of the 2021 ...
; though visible from as far away as Vancouver Island on a clear day, like Cheam does for the Eastern Valley, they are a dominant part of the mountain skyline of Mission and the communities of Hatzic, Dewdney and Deroche. Behind them is
Wahleach Lake Wahleach Lake, commonly known as Jones Lake, is a lake and reservoir located in the Skagit Range in the Lower Mainland of British Columbia, Canada, east of the city of Chilliwack, British Columbia, Chilliwack and southwest of the town of Hope, Brit ...
, which begins at the east foot of Cheam and lies in a high-altitude valley ringed by the Cheam Range. The far east ridge of Cheam is not alpine and is heavily forested and is pierced by the
BC Hydro The British Columbia Hydro and Power Authority, trade name, operating as BC Hydro, is a Canadian electric utility in the province of British Columbia. It is the main electricity distributor, serving more than 4 million customers in most areas, wi ...
diversion tunnel to Wahleach Powerhouse, which is in the area of the
Trans-Canada Highway The Trans-Canada Highway (Canadian French, French: ; abbreviated as the TCH or T-Can) is a transcontinental federal–provincial highway system that travels through all ten provinces of Canada, from the Pacific Ocean on the west coast to the A ...
that Cheam first becomes visible coming from the east. A few miles east along the highway the highway's course diverts around the foot of another mountain.


History

Cheam Peak was part of the oral history of the Sto:lo peoples. The
Halkomelem Halkomelem (; in the Upriver dialect, in the Island dialect, and in the Downriver dialect) is a language of various First Nations peoples of the British Columbia Coast. It is spoken in what is now British Columbia, ranging from southeastern ...
name for the peak, ''Theeth-uhl-kay,'' means "the source" or "the place from which the waters spring." For the Sto:lo, the peak is the "mother mountain" or old woman overlooking her children dwelling in the valley. Lady Peak, to the south is the old woman's dog. ''Cheam,'' the official name of the peak, is said to be the Halkomelem word for "wild strawberries," though the British Columbia Geographical Names Office description says that name is a reference to the lowland below. This describes the ridge that includes Cheam and Lady Peaks, and the lower slopes around Spoon Lake and upper Airplane Creek. The first recorded ascent of the mountain was in 1888 by A. O. Campbell, Ebe B. Knight and party.


Climbing history

The north face, plunging to the valley floor, has rarely been climbed. However, an easy trail provides access to the summit from a
subalpine Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...
bowl to the southwest.


Hiking

The trailhead to Cheam Peak, is via decommissioned
logging roads A gravel road is a type of unpaved road surfaced with gravel that has been brought to the site from a quarry or stream bed. Gravel roads are common in less-developed nations, and also in the rural areas of developed nations such as Canada and ...
accessible from Chilliwack Lake Road on the south side of Cheam. Access without a four-wheel drive vehicle is difficult but possible. From the trailhead, a trail leads through subalpine meadows and then ascends, moderately steeply, to the peak. The summit offers views of the Fraser Valley to the north and west and of the Cheam Range and North Cascade mountains to the south. One can also access Lady Peak via a route that begins about halfway up the Cheam Peak Trail.


Climate

Based on the
Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...
, Cheam Peak is located in the
marine west coast An oceanic climate, also known as a marine climate or maritime climate, is the temperate climate sub-type in Köppen classification represented as ''Cfb'', typical of west coasts in higher middle latitudes of continents, generally featuring co ...
climate zone of western
North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
. Most
weather front A weather front is a boundary separating air masses for which several characteristics differ, such as air density, wind, temperature, and humidity. Disturbed and unstable weather due to these differences often arises along the boundary. For ins ...
s originate in the
Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
, 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 (state), Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as m ...
where they are forced upward by the range (
Orographic lift Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and cr ...
), 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 Cheam Peak.


References

* *
A hike to the top of Cheam PeakHike guide to Cheam Peak


External links

{{Commons category, Cheam Peak * Weather forecast
Cheam Peak
Cheam Range Cheam Two-thousanders of British Columbia Yale Division Yale Land District