Mount Washington (Oregon)
Mount Washington from Big Lake
|Elevation||7,798 ft (2,377 m) NAVD 88|
|Prominence||2,554 ft (778 m) |
|Location||Deschutes / Linn counties, Oregon, U.S.|
|Parent range||Cascade Range|
|Topo map||USGS Mount Washington|
|Age of rock||Pleistocene|
|Mountain type||Shield volcano|
|Volcanic arc||Cascade Volcanic Arc|
|Last eruption||About 670 AD|
|First ascent||1923 by E. McNeal and party|
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.
- "Mount Washington, Oregon". Peakbagger.com. Retrieved 2008-04-03.
- "Mount Washington". NGS data sheet. U.S. National Geodetic Survey. Retrieved 2008-11-18.
- Wood, Charles A.; Kienle, Jűrgen (1993). Volcanoes of North America. Cambridge University Press. pp. 181–182. ISBN 0-521-43811-X.
- "Mount Washington". Skiing the Cascade Volcanoes. Retrieved 2008-04-03.
- "Mount Washington". Geographic Names Information System. United States Geological Survey. Retrieved 2008-11-18.
- "Washington, Oregon". Volcano World. Retrieved 2016-04-26.
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