Mount Washington

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Mount Washington volcano

shield volcano 2376 m / 7,794 ft
Oregon, USA (mainland exept Alaska), 44.33°N / -121.84°W
Current status: (probably) extinct (0 out of 5)

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Typical eruption style: effusive
Mount Washington volcano eruptions: possibly ca. 1330 years ago
Last earthquakes nearby: No recent earthquakes

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Mount Washington is a composite 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, formed by an andesitic lava dome is strongly eroded by glacial action during the last ice age.

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