Mount Dagelet is a glaciated mountain summit located in the

Fairweather Range The Fairweather Range is the unofficial name for a mountain range located in the U.S. state of Alaska and the Canadian province of British Columbia. It is the southernmost range of the Saint Elias Mountains. The northernmost section of the range i ...

of the

Saint Elias Mountains The Saint Elias Mountains () are a subgroup of the Pacific Coast Ranges, located in southeastern Alaska in the United States, Southwestern Yukon and the very far northwestern part of British Columbia in Canada. The range spans Wrangell-St. Elias ...

, in southeast

Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...

, United States. The peak is situated in

Glacier Bay National Park Glacier Bay National Park and Preserve is a List of national parks of the United States, national park of the United States located in Southeast Alaska west of Juneau, Alaska, Juneau. President Calvin Coolidge proclaimed the area around Glacier ...

, south of Mount Crillon, and northwest of

Mount La Perouse Mount La Perouse is a glaciated mountain summit located in the Fairweather Range of the Saint Elias Mountains, in southeast Alaska, United States. The peak is situated in Glacier Bay National Park, southeast of Mount Dagelet, south-southeas ...

, which is the nearest highest peak.

Topographic relief Terrain (), alternatively relief or topographical relief, is the dimension and shape of a given surface of land. In physical geography, terrain is the lay of the land. This is usually expressed in terms of the elevation, slope, and orientati ...

is significant as the mountain rises up from tidewater in less than nine miles. The mountain was named in 1874 by

William Healey Dall William Healey Dall (August 21, 1845 – March 27, 1927) was an American natural history, naturalist, a prominent Malacology, malacologist, and one of the earliest scientific explorers of interior Alaska. He described many mollusks of the Pacifi ...

of the

U.S. Geological Survey The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March ...

, for Joseph Lepaute Dagelet (1751-1788), a French astronomer and mathematician who accompanied Lapérouse when he explored this coastal area in 1786. The first ascent of the peak was made July 29, 1933, by W. S. Child, C. S. Houston, and H. A. Carter.

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 Dagelet has 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 cool summers. Weather systems coming off the

Gulf of Alaska The Gulf of Alaska ( Tlingit: ''Yéil T'ooch’'') is an arm of the Pacific Ocean defined by the curve of the southern coast of Alaska, stretching from the Alaska Peninsula and Kodiak Island in the west to the Alexander Archipelago in the ...

are forced upwards by the Fairweather Range (

orographic lift Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and cr ...

), causing heavy precipitation in the form of rainfall and snowfall. Winter temperatures can drop below −20 °C with wind chill factors below −30 °C. This climate supports the La Perouse Glacier to the south. Precipitation runoff and meltwater from its glaciers drains into the

. The months May through July offer the most favorable weather for climbing and viewing.

Gallery

File:Crillon Dagelet.jpg, Crillon looming behind Dagelet

References

{{reflist

External links

* Weather forecast
Mount Dagelet
Dagelet Dagelet Dagelet Dagelet

Climate

Gallery

See also

References

External links