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Yan_Zhang: Casper sunset, WY
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Yan_Zhang: Casper sunset, WY
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Yan_Zhang: Kelispell, MN
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Yan_Zhang: Iceberg lake, Glacier national park
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Yan_Zhang: Lake Sherburne, Glacier national park
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Yan_Zhang: St. Mary Lake, Glacier, Goose
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Yan_Zhang: St. Mary Lake, Glacier
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Yan_Zhang: St. Mary Lake, Glacier
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Yan_Zhang: McDonald Lake, Glacier
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Yan_Zhang: Lake Josephine, Glacier
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Yan_Zhang: Lake Josephine, Glacier
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Yan_Zhang: Lake Josephine, Glacier
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Yan_Zhang: Grinnell Lake, Glacier
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Yan_Zhang: Grinnell Lake, Glacier
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Yan_Zhang: Swiftcurrent Lake, Glacier
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Yan_Zhang: Lake McDonald, Glacier
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Yan_Zhang: Lake McDonald, Glacier
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Yan_Zhang: Lake McDonald sunset, Glacier
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Yan_Zhang: Mammoth spring, yellowstone
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Yan_Zhang: Mammoth spring, yellowstone
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Yan_Zhang: Grand prismatic spring, yellowstone
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Yan_Zhang: midway geyser basin, yellowstone
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Yan_Zhang: Grand prismatic spring, yellowstone
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Yan_Zhang: Lower geyser basin, yellowstone
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Yan_Zhang: Lower geyser basin, yellowstone
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Yan_Zhang: sapphire, yellowstone
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Yan_Zhang: Lower geyser basin, yellowstone
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Yan_Zhang: Lower geyser basin, yellowstone
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Yan_Zhang: sapphire, Lower geyser basin, yellowstone
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Yan_Zhang: Morning glory pool, yellowstone