Foss Peak is a 6,524-foot (1,989-metre) summit in the Tatoosh Range which is a sub-range of the Cascade Range. It is located south of Mount Rainier within Mount Rainier National Park, in Lewis County of Washington state. The peak is named for Thea Foss (1857–1927), who founded the Foss Maritime Company with her husband in 1889. The peak also has an alternate name, Manatee Mountain.[1] The nearest higher neighbor is West Unicorn Peak, 0.79 miles (1.27 km) to the southeast.[1] Precipitation runoff from the mountain drains into tributaries of the Cowlitz River.

Foss Peak
Foss Peak from northeast
Highest point
Elevation6,524 ft (1,989 m)[1]
Prominence404 ft (123 m)[1]
Parent peakUnicorn Peak (6,971 ft)[2]
Isolation0.85 mi (1.37 km)[2]
Coordinates46°45′19″N 121°42′46″W / 46.755223°N 121.712709°W / 46.755223; -121.712709[1]
Geography
Foss Peak is located in Washington (state)
Foss Peak
Foss Peak
Location in Washington
Foss Peak is located in the United States
Foss Peak
Foss Peak
Foss Peak (the United States)
CountryUnited States
StateWashington
CountyLewis
Protected areaMount Rainier National Park
Parent rangeCascades
Topo mapUSGS Mount Rainier East
Climbing
Easiest routeclass 2 scrambling[2]

Climate

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Foss Peak is located in the marine west coast climate zone of western North America.[3] 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.[3] Because of maritime influence, snow tends to be wet and heavy, resulting in avalanche danger.[3] 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.[3]

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References

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  1. ^ a b c d e "Foss Peak, Washington". Peakbagger.com.
  2. ^ a b c ""Foss Peak" - 6,524' WA". listsofjohn.com. Retrieved 2022-02-20.
  3. ^ a b c d Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008.
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