Parent range Cascade Range Mountain type Shield volcano Elevation 2,376 m Prominence 778 m Volcanic arc Cascade Volcanoes | Topo map USGS Mount Washington Last eruption About 670 AD First ascent 1923 Mountain range Cascade Range Age of rock Pleistocene | |
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Location Deschutes / Linn counties, Oregon, U.S. Similar Three Fingered Jack, Mount Jefferson, Broken Top, Belknap Crater, Mount Bachelor | ||
Mount washington oregon 2015
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.
Contents
Map of Mt Washington, Oregon 97759, USA
Mount Washington was first ascended on August 26, 1923 by Ervin McNeal, Phil Philbrook, Armin Furrer, Wilbur Watkins, Leo Harryman, and Ronald Sellars.
References
Mount Washington (Oregon) Wikipedia(Text) CC BY-SA