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Mount Bailey Volcano
-- Geographic Setting, and Geologic and Eruptive History
Mount Bailey is the southernmost volcano in a north-south-trending
volcanic chain 10 kilometers long that rises west of Diamond Lake. Bailey
is about the same age as Diamond Peak,
43 kilometers north: less than
100,000 years but greater than 11,000 years old, on the basis of
glacial evidence and morphologic comparisons with dated volcanoes. Like Diamond
Peak, Bailey consists of a
tephra cone surrounded by basaltic andesite lava.
Bailey is slightly smaller (8-9 cubic kilometers) than Diamond Peak, and minor
andesite erupted from the summit cone in its late stages, whereas Diamond Peak
eruptions were never more siliceous than basaltic andesite.
-- Sherrod, 1990, IN: Wood and Kienle
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[Map,21K,InlineGIF]
Southern Oregon Cascades
-- Modified from: Hoblitt, et.al., 1987, USGS Open-File Report 87-297
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Winema National Forest
-- Link courtesy U. S. Forest Service
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Umpqua National Forest
-- Link courtesy U. S. Forest Service
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MORE Useful Sites
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Mount Bailey Volcano Menu
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