Elpoca Mountain is a mountain summit located at the southern end of the Opal Range 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 ...

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 ...

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 ...

. The nearest higher peak is Mount Evan-Thomas, to the north. Elpoca Mountain is situated 4.0 kilometres south of Mount Jerram, and 2.0 km east of Gap Mountain, and all are within

Peter Lougheed Provincial Park Peter Lougheed Provincial Park is in Kananaskis Country about west of Calgary, along the Kananaskis Trail in Alberta, Canada. This park is within Alberta's Rocky Mountains. The park was originally named Kananaskis Provincial Park, but was ren ...

. Precipitation runoff from the west side of the mountain drains into tributaries of the

Kananaskis River The Kananaskis River is a mountain river in western Alberta, Canada. It is a tributary of the Bow River, crossing the length of Kananaskis Country. The river was named by John Palliser in 1858 after a Cree. Course The Kananaskis originates in th ...

, whereas the east side drains into

Elbow River The Elbow River is a river in southern Alberta, Canada. It flows from the Canadian Rockies to the city of Calgary, where it merges into the Bow River. Its name is derived from the elbow-like turn the river takes before it joins the Bow. Course ...

History

"Elpoca" is a

portmanteau In linguistics, a blend—also known as a blend word, lexical blend, or portmanteau—is a word formed by combining the meanings, and parts of the sounds, of two or more words together.

of nearby

and Pocaterra Creek. The mountain's name was officially adopted in 1928 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 Canad ...

. The

first ascent In mountaineering and climbing, a first ascent (abbreviated to FA in climbing guidebook, guide books), is the first successful documented climb to the top of a mountain or the top of a particular climbing route. Early 20th-century mountaineers a ...

of the peak was made in 1960 by G. D. Elliot, H, Kirby, and P.S. Scribens.

Geology

Elpoca Mountain 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 ...

. Elpoca Mountain was created during the

Lewis Overthrust The Lewis Overthrust is a geologic thrust fault structure of the Rocky Mountains found within the bordering national parks of Glacier in Montana, United States and Waterton Lakes in Alberta, Canada. The structure was created due to the collision o ...

. The steeply tilted strata are virtually the same in each peak of the Opal Range, with softer layers sandwiched between harder layers.

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 ...

, Elpoca Mountain 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 ...

zone with cold, snowy winters, and mild summers. Winter temperatures can drop below −20 °C with wind chill factors below −30 °C. June through September offer the most favorable weather to climb Elpoca Mountain.

Gallery

File:Elpoca Mountain and Gap Mountain.jpg, Elpoca Mountain (right) and Gap Mountain (left) File:Elpoca Mountain from Mount Rae.jpg, South aspect of Elpoca Mountain viewed from Mt. Rae

References

External links