# Boulder Ridge

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> Source: https://en.wikipedia.org/wiki/Boulder_Ridge
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{{short description|Mountain in Washington (state), United States}}
{{Use American English|date=February 2026}}
{{Use mdy dates|date=January 2025}}
{{Infobox mountain
| name = Boulder Ridge
| image = Boulder Ridge.jpg
| image_caption = Boulder Ridge, north aspect, seen from the Marmot Pass area
| elevation_ft = 6852
| elevation_ref = <ref name="pb">{{cite peakbagger|1017|Boulder Ridge}}</ref>
| prominence_ft = 572
| prominence_ref = <ref name="pb"/>
| part_type = Protected&nbsp;area
| part = [Buckhorn Wilderness](/source/Buckhorn_Wilderness)
| country = United States
| state = [Washington](/source/Washington_(U.S._state))
| region = [Jefferson](/source/Jefferson_County%2C_Washington)
| region_type = County
| map = USA Washington#USA
| map_caption = Location of Boulder Ridge in Washington
| label_position = bottom
| coordinates = {{coord|47.806822|N|123.124319|W|type:mountain_region:US-WA_scale:100000_source:gnis|format=dms|display=inline,title}}
| coordinates_ref = <ref name="pb"/>
| topo = [USGS](/source/United_States_Geological_Survey) ''Mount Townsend''
| range = [Olympic Mountains](/source/Olympic_Mountains)
| rock = Tilted pillow [Basalt](/source/Basalt)
| age = [Eocene](/source/Eocene)
| first_ascent = 
| easiest_route = [Marmot Pass](/source/Marmot_Pass) {{YDS|2}} [Scramble](/source/Scrambling)<ref>Olympic Mountains: A Climbing Guide, Olympic Mountain Rescue, Fourth Edition, 2006, The Mountaineers Books, page 132</ref>
}}

'''Boulder Ridge''' is a {{Convert|6852|ft|m|lk=off|abbr=off|adj=on}} elevation mountain ridge located in the eastern [Olympic Mountains](/source/Olympic_Mountains) in [Jefferson County](/source/Jefferson_County%2C_Washington) of [Washington](/source/Washington_(U.S._state)) state. It is set within [Buckhorn Wilderness](/source/Buckhorn_Wilderness) on land managed by the [Olympic National Forest](/source/Olympic_National_Forest). The nearest higher neighbor is Alphabet Ridge, {{convert|0.94|mi|km|abbr=on}} to the south, and [Buckhorn Mountain](/source/Buckhorn_Mountain) rises {{convert|1.3|mi|km|abbr=on}} to the north.<ref name="pb"/> Precipitation runoff from Boulder Ridge drains east into headwaters of the [Big Quilcene River](/source/Big_Quilcene_River), west into tributaries of [Dungeness River](/source/Dungeness_River), and south into Charlia Lakes, thence Tunnel Creek.

==Climate==
Based on the [Köppen climate classification](/source/K%C3%B6ppen_climate_classification), Boulder Ridge is located in the [marine west coast](/source/marine_west_coast) climate zone of western [North America](/source/North_America).<ref name=KGcc2007>{{Cite Köppen-Geiger cc 2007}}</ref> [Weather front](/source/Weather_front)s originating in the Pacific Ocean travel northeast toward the Olympic Mountains. As fronts approach, they are forced upward by the peaks ([orographic lift](/source/orographic_lift)), 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.<ref name=mcnulty>{{cite book|last=McNulty|first=Tim|title=Olympic National Park: A Natural History|year=2009|publisher=University of Washington Press|location=Seattle, Washington}}</ref> Because of [maritime influence](/source/Oceanic_climate), snow tends to be wet and heavy, resulting in [avalanche](/source/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.<ref name=mcnulty/> The months July through September offer the most favorable weather for viewing or climbing this peak.

==Geology==
The Olympic Mountains are composed of [obducted](/source/obduction) [clastic](/source/clastic_rock) wedge material and oceanic crust, primarily [Eocene](/source/Eocene) [sandstone](/source/sandstone), [turbidite](/source/turbidite), and [basalt](/source/basalt)ic oceanic crust.<ref name=Alt>{{cite book|last=Alt|first=D.D.|author2=Hyndman, D.W.|year=1984|title=Roadside Geology of Washington|pages=249–259|isbn=0-87842-160-2}}</ref> The mountains were sculpted during the [Pleistocene](/source/Pleistocene) era by erosion and glaciers advancing and retreating multiple times.

==Gallery==
thumb|center|440px|Boulder Ridge near Marmot Pass
thumb|center|440px|Boulder Ridge from Buckhorn Mountain

==See also==
{{stack|{{portal|Mountains}}}}
* [Geology of the Pacific Northwest](/source/Geology_of_the_Pacific_Northwest)
* [Geography of Washington (state)](/source/Geography_of_Washington_(state))

==References==
{{reflist}}

==External links==
* Boulder Ridge at [https://www.summitpost.org/boulder-ridge-peak-6852/465214 Summitpost.org]
* Boulder Ridge: [https://www.mountaineers.org/activities/routes-places/boulder-ridge-east-shoulder-olympics Mountaineers.org]
* [https://forecast.weather.gov/MapClick.php?lat=47.8272166854&lon=-123.042883873#.Xh_OIIiIZLM Weather]

Category:Mountains of Washington (state)
Category:Olympic Mountains
Category:Landforms of Jefferson County, Washington

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Adapted from the Wikipedia article [Boulder Ridge](https://en.wikipedia.org/wiki/Boulder_Ridge) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Boulder_Ridge?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.