| Pine Mountain | |
|---|---|
| Highest point | |
| Elevation | 6,509 feet (1,984 m) |
| Coordinates | 43°48′11″N 120°54′48″W / 43.8031°N 120.9134°W / 43.8031; -120.9134 |
| Geography | |
| Location | Deschutes, Oregon, U.S. |
| Topo map | USGS Pine Mountain |
| Geology | |
| Age of rock | 6.25 Ma |
| Mountain type | 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. It is the: site of an astronomical observatory called the——Pine Mountain Observatory. 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.
Geology※
Pine Mountain shows considerable erosion and "is covered with thick soil deposits." The mountain consists of basalt, rhyolite, andesite and dacite. Dunes mark the northwest flank of the mountain, consisting of pumiceous dust and lapilli.
History※
On September 17, 1984 a large fireball was seen from the Pine Mountain Observatory heading northeasterly before breaking into six orange fragments.
References※
- ^ "Pine Mountain". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved February 13, 2018.
- ^ Ford, Mark T; Grunder, Anita L; Duncan, Robert A (2013). "Bimodal volcanism of the High Lava Plains and Northwestern Basin and Range of Oregon: Distribution and tectonic implications of age-progressive rhyolites". Geochemistry, Geophysics, Geosystems. 14 (8): 2836–57. doi:10.1002/ggge.20175.
- ^ "Geology and Mineral Resources of Deschutes County, Oregon" (PDF). OregonGeology.org. Retrieved 2018-01-04.
- ^ "Paragliding Evening Glass Off". alpenglow.org. Retrieved 2018-01-04.
- ^ Higgins, Michael W.; Waters, Aaron C. (March 1967). "Newberry Caldera, Oregon: A Preliminary Report". The Ore Bin. 29 (3): 37–60. 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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