Mount Lyell is a

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher t ...

on the

Alberta Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...

–

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 ...

border in western

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

. Comprising five distinct summits, Mount Lyell reaches a height of . The mountain was named by

James Hector Sir James Hector (16 March 1834 – 6 November 1907) was a Scottish-New Zealand geologist, naturalist, and surgeon who accompanied the Palliser Expedition as a surgeon and geologist. He went on to have a lengthy career as a government employed ...

in 1858 in recognition of Scottish geologist Sir

Charles Lyell Sir Charles Lyell, 1st Baronet, (14 November 1797 – 22 February 1875) was a Scottish geologist who demonstrated the power of known natural causes in explaining the earth's history. He is best known today for his association with Charles ...

. __NOTOC__

Geography

Mount Lyell is located on the Great Divide, which forms the BC-Alberta boundary in this area, in

Banff National Park Banff National Park is Canada, Canada's first National Parks of Canada, national park, established in 1885 as Rocky Mountains Park. Located in Alberta's Rockies, Alberta's Rocky Mountains, west of Calgary, Banff encompasses of mountainous ter ...

. Collectively, the five peaks, and the Mt. Lyell massif itself, are commonly referred to as 'the Lyells'. The mountain is the highest in the Lyell Group, a subrange of the Central Icefields in the

Canadian Rockies The Canadian Rockies () or Canadian Rocky Mountains, comprising both the Alberta Rockies and the British Columbian Rockies, is the Canadian segment of the North American Rocky Mountains. It is the easternmost part of the Canadian Cordillera, w ...

In 1972, five distinct peaks on Mt. Lyell (formerly referred to as only Lyell 1 through 5 or L1 through L5), were named after

Swiss Swiss most commonly refers to: * the adjectival form of Switzerland * Swiss people Swiss may also refer to: Places * Swiss, Missouri * Swiss, North Carolina * Swiss, West Virginia * Swiss, Wisconsin Other uses * Swiss Café, an old café located ...

mountain guide A mountain guide is a specially trained and experienced professional mountaineer who is certified by local authorities or mountain guide associations. They are considered to be high-level experts in mountaineering, and are hired to instruct or ...

s who settled in

Golden, British Columbia Golden is a town in southeastern British Columbia, Canada, west of Calgary, Alberta, and east of Vancouver. History In 1807, David Thompsonrenowned fur trader, surveyor, and map makerwas tasked by the North West Company to open a trading rou ...

in 1912. Running south to north along the interprovincial boundary, these peaks are: Christian Peak (L5), Walter Peak (L4), and Ernest Peak (L3), named after Christian Hässler, Walter Feuz and Ernest Feuz. Located entirely in

are Edward Peak (L2) and Rudolph Peak (L1), named after Edward Feuz Jr. and Rudolph Aemmer. Mount Lyell marks the limit between the

South Saskatchewan The South Saskatchewan River is a major river in the Canadian provinces of Alberta and Saskatchewan. The river begins at the confluence of the Bow and Oldman Rivers in southern Alberta and ends at the Saskatchewan River Forks in central Sas ...

and Columbia watersheds.

Geology

Mount Lyell is composed of

sedimentary rock Sedimentary rocks are types of rock (geology), rock formed by the cementation (geology), cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or de ...

laid down during the

Precambrian The Precambrian ( ; or pre-Cambrian, sometimes abbreviated pC, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of t ...

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...

periods. Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger rock during the

Laramide orogeny The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 80 to 70 million years ago, and ended 55 to 35 million years ago. The exact duration and ages of beginning and end of the o ...

. The Lyell Formation is named after Mount Lyell. Geology for all five subpeaks is identical due to their proximity to the central peak (maximum distance: ).

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 ...

, Mount Lyell is located in a

subarctic climate The subarctic climate (also called subpolar climate, or boreal climate) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of ...

with cold, snowy winters, and mild summers. Temperatures can drop below with wind chill factors below .

Gallery

Mt Lyell 1, 2, 3 from the Columbia Icefield.jpg, Mount Lyell 1, 2 & 3 from the

Columbia Icefield The Columbia Icefield is the largest ice field in North America's Rocky Mountains. Located within the Canadian Rocky Mountains astride the Continental Divide along the border of British Columbia and Alberta, Canada, the ice field lies partly ...

References

{{DEFAULTSORT:Lyell Three-thousanders of Alberta Three-thousanders of British Columbia Park Ranges Mountains of Banff National Park Borders of British Columbia Borders of Alberta Great Divide of North America

Geography

Geology

Climate

Gallery

See also

References