Marcus Peak is a summit located in

Mount Rainier National Park Mount Rainier National Park is a List of national parks of the United States, national park of the United States located in southeast Pierce County, Washington, Pierce County and northeast Lewis County, Washington, Lewis County in Washington (sta ...

in Pierce County of

Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...

state. It is part of the Sourdough Mountains which are a small subset of the

Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington (state), Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as m ...

, and it is situated north of Dege Peak. The peak was named in 1932 for

Marcus Whitman Marcus Whitman (September 4, 1802 – November 29, 1847) was an American physician and missionary. He is most well known for leading American settlers across the Oregon Trail, unsuccessfully attempting to Christianize the Cayuse Indians, and wa ...

(1802–1847), an early pioneer and physician.''Mount Rainier National Park Place Names''. Gary Fuller Reese (author), 2009. The

Whitman Glacier The Whitman Glacier is a medium-sized glacier on the eastern flank of Little Tahoma Peak, a sub-peak of Mount Rainier in Washington. Named for the missionary Marcus Whitman, it covers and contains 4.4 billion ft3 (125 million m3) of ice. Startin ...

on Little Tahoma also honors him. Access to Marcus Peak is limited due to snow closing the Sunrise Road much of the year. July, August, and September are typically the months when the Sunrise Road is seasonally open for vehicle traffic. The nearest higher peak is Palisades Peak, to the north-northeast.

Precipitation In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls from clouds due to gravitational pull. The main forms of precipitation include drizzle, rain, rain and snow mixed ("sleet" in Commonwe ...

runoff from Marcus Peak drains into the White River.

Climate

Marcus Peak is located in the

marine west coast An oceanic climate, also known as a marine climate or maritime climate, is the temperate climate sub-type in Köppen classification represented as ''Cfb'', typical of west coasts in higher middle latitudes of continents, generally featuring co ...

climate zone of western North America.Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008. Most

weather front A weather front is a boundary separating air masses for which several characteristics differ, such as air density, wind, temperature, and humidity. Disturbed and unstable weather due to these differences often arises along the boundary. For ins ...

s originating in the Pacific Ocean travel northeast toward the

Cascade Mountains The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as many of those in the ...

. As fronts approach, they are forced upward by the peaks of the Cascade 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 them to drop their moisture in the form of rain or snow onto the Cascades. As a result, the west side of the Cascades experiences high precipitation, especially during the winter months in the form of snowfall. Because of maritime influence, snow tends to be wet and heavy, resulting in high

avalanche An avalanche is a rapid flow of snow down a Grade (slope), slope, such as a hill or mountain. Avalanches can be triggered spontaneously, by factors such as increased precipitation or snowpack weakening, or by external means such as humans, othe ...

danger. During winter months, weather is usually cloudy, but due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.

References

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External links

* National Park Service web site
Mount Rainier National Park
* Weather
Marcus Peak
Cascade Range Mountains of Pierce County, Washington Mountains of Washington (state) Mount Rainier National Park Two-thousanders of the United States