Obstruction Peak is a summit in the

Olympic Mountains The Olympic Mountains are a mountain range on the Olympic Peninsula of the Pacific Northwest of the United States. The mountains, part of the Pacific Coast Ranges, are not especially high – Mount Olympus (Washington), Mount Olympus is the high ...

and is located in

Clallam County Clallam County is a List of counties in Washington, county in the U.S. state of Washington (state), Washington. As of the 2020 United States census, 2020 census, the population was 77,155, with an estimated population of 77,616 in 2023. The cou ...

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 set within

Olympic National Park Olympic National Park is a national park of the United States located in Washington, on the Olympic Peninsula. The park has four regions: the Pacific coastline, alpine areas, the west-side temperate rainforest, and the forests of the drier e ...

and is situated at the eastern end of Obstruction Point Road which is a narrow eight-mile dirt road on Hurricane Ridge. The road ends below the south slope of Obstruction Peak, and a short hike leads to the summit. The nearest higher peak is Elk Mountain, to the northeast. Obstruction Peak is a major triple divide point such that

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 drains into tributaries of the

Elwha River The Elwha River is a river on the Olympic Peninsula in the U.S. state of Washington (state), Washington. From its source at Elwha snowfinger in the Olympic Mountains, it flows generally north to the Strait of Juan de Fuca. Most of the river's co ...

, Dungeness River, and Morse Creek. All three thence empty into the

Strait of Juan de Fuca The Strait of Juan de Fuca (officially named Juan de Fuca Strait in Canada) is a body of water about long that is the Salish Sea's main outlet to the Pacific Ocean. The Canada–United States border, international boundary between Canada and the ...

Climate

Set in the north-central portion of the Olympic Mountains, Obstruction 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 North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

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 Olympic Mountains. As fronts approach, they are forced upward by the peaks (

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. As a result, the Olympics experience 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

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. The months of July through September offer the most favorable weather for viewing or climbing this peak.

History

It's believed that a road-building project in the 1940s was expected to run a full-circle loop from the Elwha River to Hurricane Ridge and Deer Park, then on to

Port Angeles Port Angeles ( ) is a city and county seat of Clallam County, Washington, United States. The population was 19,960 at the 2020 census, it is the most populous city in the county, as well as the most populous city on the Olympic Peninsula. T ...

. The project was stopped at Obstruction Point because of loose shale and inherent instability of the slopes here, hence the ''obstruction''.

References

External links

* Weather forecast
Obstruction Peak
* {{cite web , url=https://www.nps.gov/olym/index.htm , title=Olympic National Park , publisher=National Park Service Mountains of Washington (state) Olympic Mountains Mountains of Clallam County, Washington Landforms of Olympic National Park One-thousanders of the United States