Wilson Butte

USA / California / Mammoth Lakes /
 volcano, geology
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Wilson Butte erupted at the north end of the Inyo chain between 1350 and 1200 years ago. Like the most recent series of lava flows erupted during the Inyo eruptions 650 to 550 years ago, the Wilson Butte dome was erupted shortly after a period of explosive eruptions that generated pyroclastic flows, surges, and vertical eruption columns. Scientists have determined that during the most recent eruptive episode, significant explosive activity along the Inyo chain ceased before lava flows were erupted.
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Coordinates:   37°46'59"N   119°1'33"W
This article was last modified 19 years ago