Mount Washington, Oregon
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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
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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
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[Map,17K,InlineGIF]
Bend/Sisters/Santiam Pass/McKenzie Pass Area
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[Map,25K,InlineGIF]
Central Oregon High Cascades
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Deschutes National Forest
-- Link courtesy U.S. Forest Service
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Willamette National Forest
-- Link courtesy U.S. Forest Service
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MORE Useful Sites
-- CVO Menu, includes links to Volcano Info, Seismicity, Hydrology, etc.
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Travel and Tourism Links - Three Sisters Vicinity
-- CVO Menu, includes links to Nearby Cities, Attractions, Recreation, etc.
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Weather and Road Conditions - Bend and Redmond
-- CVO Menu, includes links to Weather Forecasts, DOT's, Pass Reports, etc.
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Mount Washington Menu
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