Dewey Peak is a summit located on the shared border of Mount Rainier National Park and

William O. Douglas Wilderness The William O. Douglas Wilderness is a Wilderness Act, designated wilderness in Central Washington. It includes located between the U.S. Route 12 (Washington), U.S. Route 12 and State Route 410 (Washington), State Route 410 and is jointly admini ...

. It is also on the shared border of Pierce County and Yakima County in Washington state. Dewey Peak is situated on the crest 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 and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...

southeast of

Chinook Pass {{Infobox mountain pass , name = Chinook Pass , photo = WAMap-doton-Chinook_Pass.PNG , photo_caption = Location of Chinook Pass , elevation_ft = 5430 , elevation_ref = , traversed = State Route 410 , location = Pierce / Yakima counties, W ...

, east of

Seymour Peak Seymour Peak is a 6,337-foot-elevation (1,932 meter) mountain summit located in Mount Rainier National Park in Pierce County of Washington state. It is part of the Cascade Range and is situated southeast of Cayuse Pass and northeast of Shr ...

, and northeast of

Shriner Peak Shriner Peak is a 5,834-foot-elevation (1,778 meter) mountain summit located in Mount Rainier National Park in Pierce County, Washington, Pierce County of Washington (U.S. state), Washington state. It is part of the Cascade Range and is situat ...

. The nearest higher peak is

Chinook Peak Chinook Peak is a summit located on the eastern border of Mount Rainier National Park. It is also on the shared border of Pierce County, Washington, Pierce County and Yakima County, Washington, Yakima County in Washington (U.S. state), Washingto ...

, to the north. Dewey Peak is named in association with Dewey Lake which is set below its north aspect. Precipitation runoff from Dewey Peak drains into tributaries of the Cowlitz River and Yakima River.

Climate

Dewey Peak is located in the marine west coast climate zone of western North America.Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008. Most weather fronts originating in the Pacific Ocean travel northeast toward the Cascade Mountains. As fronts approach, they are forced upward by the peaks of the Cascade Range ( orographic lift), 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 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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Gallery

File:MRNP — Seymour Peak.jpg, Dewey Peak seen from northwest File:Dewey Peak.jpg, Dewey Peak seen from Naches Peak Loop Trail

External links

* National Park Service web site
Mount Rainier National Park
* National Forest Service web site
William O Douglas Wilderness
Cascade Range Mountains of Pierce County, Washington Mountains of Washington (state) Mountains of Yakima County, Washington North American 2000 m summits