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 ...

The Grand Prismatic Spring is the most recognizable thermal feature of Yellowstone National Park, but some of its most fascinating features are invisible to the naked eye. Underwater exists a diverse ...

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 ...

Grand Prismatic Spring is a highlight of any visit to Yellowstone National Park! The largest hot spring in the park, the deep blue pool, is surrounded by yellow and orange algae. This is a spot you ...