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Marvin Bredel: Grand Prismatic Spring
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Marvin Bredel: Lewis Falls
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Marvin Bredel: Grand Prismatic at Yellowstone
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Marvin Bredel: Yellowstone waterfall
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Marvin Bredel: Upper Falls
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Marvin Bredel: Grand Prismatic Spring
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Marvin Bredel: geyser water into the river