Ultima Thule Peak is a glaciated mountain summit located in the
Saint Elias Mountains
The Saint Elias Mountains (french: Chaîne Saint-Élie) 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 ...
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S. ...
. The peak rises above the Hawkins Glacier to its east, Erickson Creek Glacier to the south, and the Canyon Creek Glacier to the northwest. Precipitation runoff from the mountain drains into tributaries of the
Chitina River
The Chitina River ( Ahtna Athabascan Tsedi Na’ < ''tsedi'' "
, which in turn is part of the Copper River drainage basin. 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 then-unnamed peak was made in 1996 by Paul Claus, Ruedi Homberger, and Reto Reuesh via the south face.''Ultima Thule Peak, Southwest Ridge'', 2014. Americanalpineclub.org /ref> Paul Claus dubbed the peak “Ultima Thule Peak.” The second ascent was made April 20, 2013, by Kevin Ditzler and Jay Claus via the southwest ridge.
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 ...
, Ultima Thule Peak is located in a subarctic climate zone with long, cold, snowy winters, and cool summers. Winds 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 east ...
are forced upwards by the Saint Elias Mountains (
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. Temperatures can drop below −20 °C with wind chill factors below −30 °C. The months May through June offer the most favorable weather for viewing and climbing.
See also
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List of mountain peaks of Alaska
This article comprises three sortable tables of major mountain peaksThis article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a susexxleast of topographic prominence. All summits ...
*
Geography of Alaska
Alaska occupies the northwestern portion of the North American continent and is bordered only by Canada on the east. It is one of two U.S. states not bordered by another state; Hawaii is the other. Alaska has more ocean coastline than all of the ...