At Yellowstone's vibrant Grand Prismatic Spring, steam curls off the water in thick white plumes — a visual cue that the ...

The Mammoth Hot Springs Terrace in Yellowstone National Park. credit: Catherine Parker Located in the northwest corner of Yellowstone National Park, Mammoth Hot Springs is one of the more popular ...

A Yellowstone National Park visitor's walk through Black Sand Basin took a frustrating turn when they spotted a family ...

Some of the prime attractions that make Yellowstone National Park stunning and unique are the park’s 10,000-plus hydrothermal features — geysers, mud pots, cauldrons, steam vents and hot springs. But ...

Yellowstone National Park’s Morning Glory Pool is not what it used to be. Back in the 1800s, the famous hot spring was a bright, clear, turquoise blue, and it was named after the flower it resembled.

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 ...

A bison in Yellowstone National Park appeared to stumble into the scalding water of Grand Prismatic Spring, causing its death as tourists looked on during the park's busiest season. The bison fell ...

When Leonard Nimoy flew to Yellowstone in August 1978 to shoot a scene for "Star Trek: The Motion Picture, " Mammoth Hot ...