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Yellowstone Upper Geyser Basin |
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The Upper Geyser Basin has more than 25% of all the active Geysers in the world. Including Old Faithful. |
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Blue Star hot spring. The color is a terrific shade of blue. |
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Old Faithful. One of the largest predictable geysers in the world. The height can reach over 100 feet. Erruptions currently occur about every 90 minutes. |
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Grotto Geyser errupting. |
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Giant Geyser. |
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Beauty Pool. |
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Riverside Geyser -- prelude to erruption. |
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Morning Glory Pool. It is beautiful now, but it was even more beautiful before people threw junk in the throat and choked the water supply. It may come back if visitors are more careful. |
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Heart Spring hot spring. The color is a terrific shade of blue. |
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