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Lava boulders on the slick rock of Boulder Mountain, which makes up half of the Aquarius Plateau, testify to the mountain's volcanic...
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Ancient Witness

Escalante-Grand Staircase

Lava boulders on the slick rock of Boulder Mountain, which makes up half of the Aquarius Plateau, testify to the mountain's volcanic origins. Photo © copyright by Robert Faucher.

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