Pine Mountain (Oregon)
| Pine Mountain | |
|---|---|
| Highest point | |
Pyroclastic cone | |
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.[3] It is the site of an astronomical observatory called the Pine Mountain Observatory.[4] 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.[2] Pine Mountain is also well known for its spectacular "glass off" weather conditions which are ideal for paragliding.[4]
Geology
Pine Mountain shows considerable erosion and is covered with thick soil deposits.[3] The mountain consists of basalt, rhyolite, andesite and dacite.[5][6] Dunes mark the northwest flank of the mountain, consisting of pumiceous dust and lapilli.[7]
History
On September 17, 1984 a large fireball was seen from the Pine Mountain Observatory heading northeasterly before breaking into six orange fragments.[8]
References
- ^ a b "Pine Mountain". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved February 13, 2018.
- ^ .
- ^ a b "Geology and Mineral Resources of Deschutes County, Oregon" (PDF). OregonGeology.org. Retrieved 2018-01-04.
- ^ a b "Paragliding Evening Glass Off". alpenglow.org. Retrieved 2018-01-04.
- CiteSeerX 10.1.1.614.3401.
- ^ "Newberry Volcano, Oregon: A Cascade Range geothermal prospect" (PDF). OregonGeology.org. Retrieved 2018-01-04.
- ^ "Preliminary Report on the Geology and Water Resources of Central Oregon" (PDF). PUBS.USGS.GOV. Retrieved 2018-01-04.
- ^ "Large fireball sighted in Pacific Northwest: More information needed" (PDF). OregonGeology.org. Retrieved 2018-01-04.
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