| Yellowstone (Wyoming), USA | |
| Black Sand Basin | |
| 16 August 2017 |
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After the eruption of Old Faithful, our final trip for today was to Black Sand Basin, in the near vicinity of Old Faithful. Here one finds a smörgåsbord of geothermic phenomena in a localized area. This made for a nice conclusion of the day... |
| Cliff geyser and Iron creek | |
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| Jagged spring & Ragged spring | |
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| unnamed hot spring | Green spring |
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| Runoff waters with extremophile bacteria | ||
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| Sunset lake | |
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| Sunset lake & Cyanobacteria | |
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| Emerald pool | |
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| Opalescent pool | |
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| Spouter geyser | ||
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