Mount Washington (Oregon)
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| Mount Washington | |
|---|---|
 |
|
| Elevation | 7,794 ft (2,376 m) [1] |
| Prominence | 2,554 ft (778 m) [1] |
| Location | |
| Location | Deschutes / Linn counties, Oregon, USA |
| Range | Cascade Range |
| Coordinates | 44°19′56″N 121°50′19″W / 44.3321254°N 121.8385292°WCoordinates: 44°19′56″N 121°50′19″W / 44.3321254°N 121.8385292°W[2] |
| Topo map | USGS Mount Washington |
| Geology | |
| Type | Shield volcano [3] |
| Age of rock | Pleistocene |
| Volcanic arc/belt | Cascade Volcanic Arc |
| Last eruption | About 670 AD |
| Climbing | |
| First ascent | 1923 by E. McNeal and party [4] |
Mount Washington is a deeply eroded shield volcano in the Cascade Range of Oregon. The mountain dates to the Late Pleistocene. However, it does have a line of basaltic andesite spatter cones on its northeast flank which are approximately 1,330 years old according to carbon dating. The main peak is a volcanic plug that was heavily eroded by glaciers in the last ice age.[3]
[edit] See also
[edit] References
- ^ a b "Mount Washington, Oregon". Peakbagger.com. http://www.peakbagger.com/peak.aspx?pid=2411. Retrieved 2008-04-03.
- ^ "Mount Washington". NGS data sheet. U.S. National Geodetic Survey. http://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=QD1736. Retrieved 2008-11-18.
- ^ a b Wood, Charles A.; Jűrgen Kienle (1993). Volcanoes of North America. Cambridge University Press. pp. 181–182. ISBN 0-512-43811-X.
- ^ "Mount Washington". Skiing the Cascade Volcanoes. http://www.skimountaineer.com/CascadeSki/CascadeSki.php?name=Washington. Retrieved 2008-04-03.
[edit] External links
- "Mount Washington". Geographic Names Information System, U.S. Geological Survey. http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1151927. Retrieved 2008-11-18.
- "Mount Washington Volcano, Oregon". U.S. Geological Survey. http://vulcan.wr.usgs.gov/Volcanoes/Mt_Washington/description_mt_washington.html. Retrieved 2008-04-03.
- "Washington, Oregon". Volcano World. http://volcano.oregonstate.edu/vwdocs/volc_images/north_america/wash_ore.html. Retrieved 2008-04-03.
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Categories:
- Shield volcanoes
- Cascade Range
- Volcanoes of Oregon
- Mountains of Oregon
- Landmarks in Oregon
- Subduction volcanoes
- Cascade Volcanoes
- Pleistocene volcanoes
- Volcanic plugs of the United States
- Landforms of Deschutes County, Oregon
- Landforms of Linn County, Oregon
- Deschutes National Forest
- Willamette National Forest
- Oregon geography stubs
