Yellowstone National Park's geological history is one of the most intensely studied in North America. A new geologic unit ...

It's a trek to get to Yellowstone National Park. And even then, the adventure has only just begun. Yellowstone National Park spans almost 3,500 square miles. That's a mammoth undertaking, especially ...

Fresh off of a year that saw Yellowstone and Glacier national parks notch their second-highest visitation years ever, the two anchors for Montana’s tourism sector are on an even hotter pace this ...

According to a video posted by Yellowstone on Facebook, tracks in the snow were observed in the northern part of the park on March 9.Grizzly bear tracks are unmistakable: huge prints in the snow ...

A bison falls into Grand Prismatic Spring at Yellowstone National Park on June 21, ... She said it was about 7:15 p.m., very foggy and "really eerie and mysterious" when they spotted animal prints.

The “first national park” was born 151 years ago, on March 1, 1872, when President Ulysses S. Grant signed into law the Yellowstone National Park Protection Act.

Yellowstone National Park — Inside America's oldest national park, there's an urgent push to repair catastrophic damage caused by last month's historic flooding, which scientists say was fueled ...

The Grand Prismatic hot spring is among the national parks myriad hydrothermal features created by the Yellowstone supervolcano. Photographed on July 22, 2014 in Yellowstone National Park, WY.

A bison walked past a group of people who watched the eruption of Old Faithful Geyser in Yellowstone National Park in 2022. Old Faithful has erupted every 44 to 125 minutes since 2000.