TRUSTED NEWS LEADER FOR COTTONWOOD, CAMP VERDE & THE VERDE VALLEY
Tue, Sept. 29
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Known locally as the Tee Pee rocks, the Cottonwood Basin Fumaroles are the result of volcanic ash falling on what was once a freshwater lake that covered the Verde Valley. The steam mixed from the lake�s calcium-carbonate-rich water deposited calcite into the ash, forming a cement-like shell around the vents that were exposed when surrounding lake sediments eroded. VVN/Steve Ayers

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Stories this photo appears in:

Tease photo
A Violent Past
A brief history of the Verde Valley volcanoes

CAMP VERDE - River valleys are by nature drainages cut into the earth's crust by water flowing across the surface over long periods of time.

By Steve Ayers March 23, 2010
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