Other Yellowstone visitors were horrified Monday as they watched a man in flip-flops walking off the board walk onto the ...

Photos of the incident show the man casually walking across the park's delicate protected bacterial mats to collect fallen ...

The bison died in the boiling waters of the Grand Prismatic Spring. This happens from time to time, but usually not in front of a crowd.

The incident occurred at Grand Prismatic Spring near Old Faithful as tourists were enjoying a close-up view of the famous and popular hot spring.

A bison died after it appeared to stumble into a popular hot spring, where temperatures reach 192 degrees Fahrenheit, while tourists watched on at Yellowstone National Park1.

Members of Montana’s congressional delegation have introduced bicameral legislation implementing a presidential order that ...

Looking for the best things to do in Yellowstone National Park? From famous geysers to hidden hot springs, here are some unforgettable ways to explore the park.

The color given off by Grand Prismatic’s bacteria is a pigment that they use as sunscreen. By the time the water gets to the edge of the spring, it has cooled to about 147 degrees.

At 250-by-300 feet and up to 160 feet deep, the Grand Prismatic Spring is the largest hot spring in the USA. Its brilliant colors are the result of pigmented bacteria living on its perimeter.

Members of Montana’s congressional delegation have introduced bicameral legislation implementing a presidential order that ...