| Day 21 | 3/5 |
| Yellowstone National Park, Teton National Forest | ||
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Seashell spring. |
Cliffside geyser. |
Sunset pool. |
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Self-explanatory. |
Thar she blows! |
This ranger rocks. |
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Star spring. Sort of. |
Spasmodic geyser. |
These two geysers erupt simultaneously. |
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