macgreg
A huge pool of boiling mud
The main attraction of the Lower Basin is the Fountain Paint Pot, a huge pool of bubbling mud that seems to resemble a big, eternally boiling pot. A circular path of wooden walkways, 0.6 miles long, runs along the transparent Silex Spring and offers a beautiful view overlooking this place, which seems like a lunar landscape. The Great Fountain Geyser is one of the most powerful geysers in the area, with eruptions capable of reaching 150 feet in the air. They occur every 8-12 hours and continue for 45-60 minutes.
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