Denman Peak is a small 6,006 ft summit in the

Tatoosh Range The Tatoosh Range is a mountain range located in Mount Rainier National Park and the adjacent Tatoosh Wilderness in the state of Washington, in the Pacific Northwest region of the United States.Mandrake"Tatoosh Range."SummitPost.org, 2006. Accesse ...

which is a sub-range of the Cascade Range. It's located south of

Mount Rainier Mount Rainier (), indigenously known as Tahoma, Tacoma, Tacobet, or təqʷubəʔ, is a large active stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park about south-southeast of Seattle. With a ...

within

Mount Rainier National Park Mount Rainier National Park is an American national park located in southeast Pierce County and northeast Lewis County in Washington state. The park was established on March 2, 1899, as the fourth national park in the United States, preservin ...

. Denman Peak is situated east of Lane Peak and west of Pinnacle Peak. Formerly known as ''That Peak'', in 1931 The Mountaineers named it for their lawyer, Asahel Holmes Denman of Tacoma, following twenty years of work in the interests of the organization.The Tacoma Ledger. June 23, 1931 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 ...

on the south side of the peak drains into tributaries of the

Cowlitz River The Cowlitz River is a river in the state of Washington in the United States, a tributary of the Columbia River. Its tributaries drain a large region including the slopes of Mount Rainier, Mount Adams, and Mount St. Helens. The Cowlitz has ...

, whereas the north side drains into tributaries of the

Nisqually River The Nisqually River is a river in west central Washington in the United States, approximately long. It drains part of the Cascade Range southeast of Tacoma, including the southern slope of Mount Rainier, and empties into the southern end of ...

Climate

Denman Peak is located in the

marine west coast An oceanic climate, also known as a marine climate, is the humid temperate climate sub-type in Köppen classification ''Cfb'', typical of west coasts in higher middle latitudes of continents, generally featuring cool summers and mild winters ...

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 ...

s 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 contine ...

, and 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 the North Cascades, ...

. 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 snowfall onto the Cascades. As a result, the west side of the North Cascades experiences high precipitation, especially during the winter months in the form of snowfall. 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. Because of maritime influence, snow tends to be wet and heavy, resulting in

avalanche An avalanche is a rapid flow of snow down a slope, such as a hill or mountain. Avalanches can be set off spontaneously, by such factors as increased precipitation or snowpack weakening, or by external means such as humans, animals, and ear ...

danger.

Climbing

The Pinnacle Saddle Trailhead is located on the south side of the Stevens Canyon Road at Reflection Lakes. The well maintained Pinnacle Saddle Trail climbs 1,050 feet to the saddle in 1.25 mile length. From the saddle between Pinnacle and Plummer Peak, a climber's path traverses the north slope of Plummer Peak. Reaching the summit of Denman Peak is short class 2-3 scrambling.

References

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External links

* Weather forecast
Denman Peak
* National Park Service web site
Mount Rainier National Park
Cascade Range Mountains of Lewis County, Washington Mountains of Washington (state)