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

Canadian Rockies The Canadian Rockies (french: Rocheuses canadiennes) 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 ...

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 ...

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

. The nearest higher peak is Mount Evan-Thomas, to the north. Elpoca Mountain is situated 4.0 kilometres south of

Mount Jerram Mount Jerram is a mountain summit located in the Opal Range of the Canadian Rockies of Alberta, Canada. Its nearest higher peak is Elpoca Mountain, to the south-southeast. Mount Jerram is situated east of Mount Wintour, within Peter Lougheed Pr ...

, and 2.0 km east of Gap Mountain, and all are within Peter Lougheed Provincial Park. Precipitation

runoff Runoff, run-off or RUNOFF may refer to: * RUNOFF, the first computer text-formatting program * Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed * Runoff or run-off, a stock market ...

from the west side of the mountain drains into tributaries of the Kananaskis River, 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. Course The Elbow River originates at Elbow Lake in the Front Range of the Canadian Rocky ...

History

"Elpoca" is a

portmanteau A portmanteau word, or portmanteau (, ) is a blend of wordsElbow 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. Course The Elbow River originates at Elbow Lake in the Front Range of the Canadian Rocky ...

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 Canada ...

. The

first ascent In mountaineering, a first ascent (abbreviated to FA in guide books) is the first successful, documented attainment of the top of a mountain or the first to follow a particular climbing route. First mountain ascents are notable because they en ...

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 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 ...

. 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 of ...

. 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 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 ...

, Elpoca Mountain 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 ...

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