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Introduction to the Trail
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Our Dynamic Earth
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Xenolith
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The Birth of a Mountain
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A Complicated History
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Curtain of Fire
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Life and Landscape Transformed
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As Powerful as a Volcano
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Volcanoes
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One Volcano Amid Many
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O'Leary Peak
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San Francisco Peaks
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Frozen in Time
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Ropes and Clinkers
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Dating Debates
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Why are Volcanoes Here?
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An Explosive Past?
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Paricutin
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Taking Root
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Miniature Volcanoes
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Hornito
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Undercurrents
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Surface Currents
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Survival in Extremes
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Penstemon
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Changes to Come
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Give and Take
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Power to Symbolize
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Traditions