Norris Geyser Basin is the terrestrial equivalent of Dante's Inferno -- geysers are born before your very eyes in a loud spasmodic hiss, bacterial mats that bear incredible colors from thermophiles and algae, temperatures that reach a scalding 500 F at places.
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| Porcelain basin | Colloidal Pool |
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| Cistern pool | The birth of a geyser | The incredible colors come from an array of bacterial mats that grow at different temperatures |
