Mount Washington, Oregon

MtWash84_mount_washington_oregon_10-01-84.jpg
Mount Washington, Oregon, as seen from the east.
USGS Photograph taken October 1, 1984, by Lyn Topinka.
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Mount Washington Volcano

Mount Washington Volcano
-- Geographic Setting, Geologic and Eruptive History
The age of Mount Washington is probably no more than a few 100,000 years, similar to that of other central High Cascade stratovolcanoes. During the late Pleistocene, cirques were excavated into the flanks of the summit cone by valley glaciers which extended more than 12 kilometers east and west. The is no evidence of recent reactivation of Mount Washington volcanism, but a series of aligned small basaltic andesite spatter cones erupted on the northeast flank approximately 1,330 years ago (carbon-14). -- Excerpt from: Taylor, 1990

To Get There

Access to the Mount Washington Wilderness is restricted to foot trails. The west and southwest sides of the mountain are crossed by the Skyline Trail, 5 kilometers from a trailhead at Big Lake, near U. S. 20. The best long-distance viewpoints on main highways are from U.S. 20 near Blue Lake and from Oregon 242 at Windy Point.

-- Excerpt from: Wood and Kienle, 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, 354p., p.181-182, Contribution by Edward M. Taylor

Location Maps

[Map,17K,InlineGIF]
Bend/Sisters/Santiam Pass/McKenzie Pass Area

[Map,25K,InlineGIF]
Central Oregon High Cascades

Useful Links

Deschutes National Forest and Willamette National Forest -- U.S. Forest Service websites, scroll to desired Forest
MORE Useful Sites -- CVO Menu, includes links to Volcano Info, Seismicity, Hydrology, etc.

For More Information

Mount Washington Menu

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URL for CVO HomePage is: <http://vulcan.wr.usgs.gov/home.html>
URL for this page is: <http://vulcan.wr.usgs.gov/Volcanoes/Mt_Washington/Locale/framework.html>
If you have questions or comments please contact: <GS-CVO-WEB@usgs.gov>
04/16/08, Lyn Topinka