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Norris Geyser Basin and Mud Volcano are some minor attractions in the park.
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Echinus Geyser, a very acid geyser in the Norris Geyser Basin. | |
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Bisons at our way. | ||
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Mud Volcano, bubbling slightly below 100°C | ||
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Mammoth Hot Springs |  |
NW US main page. |  |
Yellowstone NP. |