Thirtynine Mile Mountain

Thirtynine Mile Mountain

Thirtynine Mile Mountain is a remnant of the Tertiary Period Guffey Volcano (inactive for about 30 million years) in the Thirtynine Mile volcanic field.
18 April 2010
Sarah Simon
on Apr 25, 2010 9:34 pm
Image Type(s): Scenery
Image ID: 616376

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