Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of earth’s largest volcanic systems, ...

New mapping of the magma lying beneath Yellowstone National Park sheds light on where volcanic activity is shifting, and the ...

Witness America's most iconic land animal in these amazing but underrated park destinations instead of Yellowstone National ...

The crown jewel of American national parks, Yellowstone is a rough masterpiece, shaped by the colossal forces of the ...

Scientists have used advanced techniques to find the answer to the troubling questions: when will Yellowstone erupt and what will the effects be?

While millions around the world tuned in to watch Kevin Costner’s sensationalized depiction of western history in the ...

Major SFGATE expansion will see added coverage of national parks in Pacific Northwest, Southwest and Big Sky Country.

In the past 2.1 million years, Yellowstone has had three major eruptions, the most powerful ones in the world’s recorded history and producing enough ash and lava to fill the Grand Canyon.

Excelsior Geyser is located in Midway Geyser Basin, adjacent to the spectacular Grand Prismatic Spring. The geyser may have ...

A beloved matriarch, 907F lived to be 11 years old, which is much longer than the average life span for gray wolves and a rare feat, even for those in the protected area of Yellowstone Sarah Kuta ...

Master wolf-observer Rick McIntyre's new book transports readers to the middle of the action, guest reviewer Michael Palmer writes.

The Grand Canyon harbors a healthy population of bighorn sheep, but they are most likely seen while hiking deep into the canyon or running the Colorado River. Mule deer and javelina wild pigs inhabit ...