Deltaform Mountain is one of the

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 (topography), summit area, and ...

s in the

Valley of the Ten Peaks Valley of the Ten Peaks (french: Vallée des Dix Pics) is a valley in Banff National Park in Alberta, Canada, which is crowned by ten notable peaks and also includes Moraine Lake. The valley can be reached by following the Moraine Lake road near ...

, located on the

Continental Divide A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not ...

on the border of

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

and

Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...

, and also on the border between Banff and Kootenay National Parks in Canada. The mountain was originally named Saknowa by Samuel Allen but

Walter Wilcox Walter Dwight Wilcox (1869–1949) was an early explorer of the Canadian Rockies, especially in the Lake Louise region. Life Wilcox was educated at Phillips Academy, Andover (Class of 1889) and Yale University (1893). Walter Wilcox is known for ...

named it to its official title in 1897 as it resembles the Greek letter

delta Delta commonly refers to: * Delta (letter) (Δ or δ), a letter of the Greek alphabet * River delta, at a river mouth * D (NATO phonetic alphabet: "Delta") * Delta Air Lines, US * Delta variant of SARS-CoV-2 that causes COVID-19 Delta may also re ...

. Deltaform was first climbed in 1903 by August Eggers and Herschel Clifford Parker who were guided by Christian and Hans Kaufmann. __NOTOC__

Climbing routes

The two main climbing routes are: * North-West Ridge (Normal Route) II 5.5 * North Face, The Supercouloir IV 5.8

Geology

Deltaform Mountain is composed of

sedimentary rock Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...

laid down during the

Precambrian The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, 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 the ...

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 Mya. The J ...

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, 70 to 80 million years ago, and ended 35 to 55 million years ago. The exact duration and ages of beginning and end of the o ...

Climate

Based on the

Köppen climate classification The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notabl ...

, Deltaform is located in a

subarctic climate The subarctic climate (also called subpolar climate, or boreal climate) is a 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 an ocean, ge ...

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

References

{{Canadian Rockies, state=collapsed Three-thousanders of Alberta Three-thousanders of British Columbia Canadian Rockies Mountains of Banff National Park Kootenay National Park Borders of Alberta Borders of British Columbia Great Divide of North America

Climbing routes

Geology

Climate

See also

References