We visited Old Faithful 喷泉, 间歇泉 at Yellowstone National Park and witnessed the amazing display of boiling hot water and steam being shot hundreds of feet into the sky.

Yellowstone National Park is 首页 to vast herds of 野牛 roaming in the park's central valley.

Many of the beautiful 颜色 the found in Yellowstone’s hydrothermal basins come from “thermophiles” (microorganisms that thrive in hot temperatures).