Pine Mountain (Oregon)

{{Short description|Mountain in Oregon}}

{{Use mdy dates|date=January 2025}}

{{Infobox mountain

| name = Pine Mountain

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| elevation = {{convert|6,509|ft|m}}{{cite gnis|id=1147718|name=Pine Mountain|accessdate=February 13, 2018}}

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| location = Deschutes, Oregon, U.S.

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| coordinates = {{coord|43.8031|-120.9134|format=dms|type:mountain_region:US-OR|display=inline,title}}

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| topo = USGS Pine Mountain

| type = Pyroclastic cone

| age = 6.25 Ma{{cite journal |doi=10.1002/ggge.20175 |title=Bimodal volcanism of the High Lava Plains and Northwestern Basin and Range of Oregon: Distribution and tectonic implications of age-progressive rhyolites |journal=Geochemistry, Geophysics, Geosystems |volume=14 |issue=8 |pages=2836–57 |year=2013 |last1=Ford |first1=Mark T |last2=Grunder |first2=Anita L |author-link2=Anita Grunder|last3=Duncan |first3=Robert A |doi-access=free |bibcode=2013GGG....14.2836F }}

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Pine Mountain is a rhyolitic mountain east of Bend and south of U.S. Route 20 (US 20) in eastern Deschutes County, Oregon, United States.{{cite web|url=http://www.oregongeology.org/pubs/B/B-089.pdf|title=Geology and Mineral Resources of Deschutes County, Oregon|website=OregonGeology.org|accessdate=2018-01-04}} It is the site of an astronomical observatory called the Pine Mountain Observatory.{{cite web |title=Paragliding Evening Glass Off |url=http://www.alpenglow.org/paragliding/inland/cd-0527-051-pine-glassoff.html |accessdate=2018-01-04 |website=alpenglow.org}} The mountain is a part of the Deschutes Formation (which is related to Cascade volcanism) and is the southeasternmost exposure of the formation and is of similar age to Cline Buttes. Pine Mountain is also well known for its spectacular "glass off" weather conditions which are ideal for paragliding.