4.7
Hot springs & geothermal areas
Mammoth Hot Springs
Yellowstone National Park, United States
A series of striking limestone terraces formed over thousands of years by hot spring water depositing calcium carbonate. The terraces showcase vibrant hues, particularly in the warm months, thanks to heat-loving bacteria that live in the waters. It’s a geologist's dream and a photographer's delight with constantly changing formations.
Good to know
- Best months
- May–Jun
- Getting there
- Best as a day trip
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