Duffey Peak is a mountain

summit A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topography, topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used ...

located in southwest

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, ...

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 ...

Description

Duffey Peak is part of the Joffre Group, which is a subset of the Lillooet Ranges of the

Coast Mountains The Coast Mountains (french: La chaîne Côtière) are a major mountain range in the Pacific Coast Ranges of western North America, extending from southwestern Yukon through the Alaska Panhandle and virtually all of the Coast of British Columbia ...

. It is situated east of Pemberton, and immediately northeast of Lillooet Lake. The nearest higher neighbor is Slalok Mountain, to the northeast and the two peaks are connected by Two Goat Ridge. 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 peak drains into Joffre Creek and Twin One Creek, both of which are tributaries of the Lillooet River. Topographic relief is significant as the summit rises over 2,000 meters (6,560 feet) above Lillooet Lake in four kilometers (2.5 miles). The summit offers a panoramic view of the lake as well as Mount Matier,

Mount Hartzell Mount Hartzell is a mountain summit located in the Coast Mountains, in Joffre Lakes Provincial Park, in southwestern British Columbia, Canada. It is part of the Joffre Group, which is a subset of the Lillooet Ranges. It is situated east of Pe ...

Mount Spetch Mount Spetch is a mountain summit located in the Coast Mountains, in Joffre Lakes Provincial Park, in southwestern British Columbia, Canada. It is part of the Joffre Group, which is a subset of the Lillooet Ranges. It is situated east of Pemb ...

, Slalok Mountain, and Mount Taylor.

Etymology

The mountain is named in association with Duffey triangulation station. The toponym was officially adopted on January 23, 1979, 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 Duffey name, as associated with nearby

Duffey Lake Duffey Lake Provincial Park is a provincial park in British Columbia, Canada, located at the lake of the same name, which lies along BC Highway 99 just east of the summit of Cayoosh Pass. The lake's inflow and outflow are Cayoosh Creek. The park ...

, refers to "Patrick Duffey, miner, Lillooet" according to the Geographic Board.

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 ...

, Duffey Peak 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 of western

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. Most weather fronts originate in the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

, and travel east toward the

where they are forced upward by the range ( Orographic lift), causing them to drop their moisture in the form of rain or snowfall. As a result, the Coast 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 Duffey Peak.

Gallery

File:Duffey Peak in winter.jpg, North aspect, viewed from Mt. Taylor in winter File:Duffey Peak.jpg, Duffey Peak

References

External links