A bison died after it appeared to stumble into a hot spring at Yellowstone National Park last week while visitors looked on. The incident occurred during the early morning of June 21 at Grand ...

See Yellowstone National Park’s most colorful hot springs from a great vantage point when you hike the Grand Prismatic Spring Overlook Trail. This easy trail takes hikers across the Firehole River ...

Onlookers at one of Yellowstone National Park's most popular sites watched a large bison take its final steps into a scalding hot spring and die in a horrifying reminder of what can happen away from ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Michael Poland, geophysicist with the ...

The Grand Prismatic hot spring in Yellowstone National Park is sourced from a magma chamber beneath it. The bright colours are produced by hydrophilic bacteria in the mineral-rich water. Disclaimer: ...