Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

According to the National Park Service, Yellowstone holds about half of the ... With its awe-inspiring yellow, red, and pink colors stretching along the canyon's length of 20 miles, it has ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

On March 1, 1872, President Ulysses S. Grant signed the bill creating Yellowstone Park, the first national park in the history of the world. Despite the fact that the new national park comprised ...

One significant change happened in Yellowstone back then. All the park's resident wolves were dead. Between 1883 and 1917 more than 100,000 wolves were killed for bounty in Montana and Wyoming alone.

The best times to visit Yellowstone National Park are from late April to May as well as September through early October. These shoulder months offer mild weather, fewer crowds and little to no road ...

Geysers and hydrothermal features are what Yellowstone National Park is known for ... showcases bubbling mud in shades of pink and gray. Along the trail, Clepsydra Geyser emits near-constant ...

Native peoples moved in and out of the area that was to become Yellowstone National Park for ceremonies, hunting, and the medicines, minerals, and plants found there. Yellowstone was established as ...

Yellowstone National Park's nearly 3,500 square miles seep slightly across state borders into Montana and Idaho, but its major attractions are contained in the northwest corner of Wyoming.