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 ...

The breathtaking beauty of Yellowstone National Park and its stunning hydrothermal features may have you exclaim: "Hold on to your hats!" The U.S. Geological Survey asks you to take that literally.

Millions of people visit Yellowstone National Park’s hot springs. There’s Grand Prismatic, the park’s largest and brightest spring known for its deep orange, yellow and turquoise colors; Mammoth Hot ...

A bison was gruesomely boiled to death in a Yellowstone National Park hot spring last week — as tourists watched in horror. The buffalo met its ghastly end when it apparently stumbled into the ...

Yellowstone National Park is one of the most popular and fascinating parks in the U.S. Naturally, there are quite a few ...

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.

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