Terrace Springs — Yellowstone National Park

Although Terrace Spring may appear to be boiling, but it’s temperature is a relatively cool 140 F (60 C). The roiling in the pol is caused by carbon dioxide bubbles. Thousands of years ago, when Yellowstone’s climate was wetter, the water of the springs had a different composition, allowing travertine to form—just like that seen today at Mammoth Hot Springs.

This video and audio are from the Sounds of Yellowstone (ASMR, Sleep, Concentration) series. Subscribe to the series on our YouTube channel, or Apple Podcasts.