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Mount Jefferson is a prominent feature of the landscape seen from highways east and west of the Cascades. The volcano has erupted repeatedly for hundreds of thousands of years beginning about 300,000 years ago.
Mount Jefferson is a prominent feature of the landscape seen from highways east and west of the Cascades. The volcano has erupted repeatedly for hundreds of thousands of years beginning about 300,000 years ago.
Mount Jefferson is a prominent feature of the landscape seen from highways east and west of the Cascades. The volcano has erupted repeatedly for hundreds of thousands of years beginning about 300,000 years ago.
Mount Jefferson is a prominent feature of the landscape seen from highways east and west of the Cascades. The volcano has erupted repeatedly for hundreds of thousands of years beginning about 300,000 years ago.