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Washington

, Mount

A mountain, 1,917.8 m (6,288 ft) high, of eastern New Hampshire. It is the highest elevation in the White Mountains.

 

 
 
Wikipedia: Mount Washington (Oregon)
Mount Washington
Mount_Washington_Oregon.jpg
Elevation 7,795 feet (2,376 metres)
Location Oregon, USA
Range Cascade Range
Prominence 2,554 ft (779 m)
Coordinates 44°19′55.65″N, 121°50′18.70″W
Topo map USGS Mount Washington 44121-C7
Type Shield volcano
Volcanic arc/belt Cascade Volcanic Arc
Age of rock Pleistocene
Last eruption ~670 AD
First ascent 1923 by E. McNeal and party[citation needed]

Mount Washington is a 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.[1]

Climbing Mt Washington is an easy daytrip(3-6 hours to summit), however caution is necessary as the volcanic rock is loose and rotten. The easiest route is via the North Ridge. Access via the Pacific Crest Trail near Big Lake. Hike through 2 miles of forest trail up to the ridge. Stay east of rocks up to summit block. Climb through chimney past leftover rappel slings and scramble up summit block about 100 yds. Class 4 climbing- rope and climbing knowledge preferred.

References

  1. ^ Wood, Charles A.; Jűrgen Kienle (1993). Volcanoes of North America. Cambridge University Press, pp. 181-182. ISBN 0-512-43811-X. 

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mount Washington (Oregon)" Read more

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