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Mount Mazama
Mount Mazama is a stratovolcano in the Oregon segment of the Cascade Volcanic Arc and the Cascade Range located in the United States. The volcano's collapsed caldera holds Crater Lake, and the entire mountain is located within Crater Lake National Park. When it last erupted, the eruption was 42 times greater than the eruption of Mount St. Helens in 1980.
Mazama's summit was destroyed by a volcanic eruption that occurred around 5677 (± 150) BC.〔〔 The eruption reduced Mazama's approximate height by about . Much of the volcano fell into the volcano's partially emptied neck and magma chamber. At , Hillman Peak is now the highest point on the rim.
== History ==
The Klamath Native Americans of the area believed that the mountain was inhabited by Llao, their god of the underworld. After the mountain destroyed itself the Klamaths recounted the events as a great battle between Llao and his rival Skell, their sky god.〔
Much of what is known of Mazama's geology comes from a study by Howel Williams of the University of California, Berkeley and later, from USGS geologist Charles R. Bacon who expanded and modified Williams' work.
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