Yellowstone

Yellowstone bison have started their yearly migration out of Yellowstone. Park officials have said that 600 to 900 animals are due to be removed this winter.

Analysis suggests Steamboat has a "more complex and deeper" plumbing system than Old Faithful.

Impact of bison grazing on the national park is so extensive it can be seen from space.

The National Park Service confirmed the victims's family returned to the park and collected his remains. The victim, who was last week four years ago, was named as Feiyang "Isaac" Xiang, 21.

"Knowing this will help us understand supereruptions that have occurred before, and those that will occur in the future."

USGS scientist addresses spike in internet searches for Yellowstone caldera after the quakes.

Wyoming Board of Geographic Names voted to change name of Mount Doane to the First Peoples Mountain.

Scientists analyzed radioactive decay of potassium to argon to learn more about Yellowstone's eruptive history.

Study of how elk responded to wolves shows there was little change to their movements around National Park.

The Senate passed the Natural Resources Management Act, which conserves and protects more than a million acres of federal land. The bill now goes to the House.

Hollywood actor, director and producer Kevin Costner celebrates his 64th birthday on January 18.

The tallest geyser in the world had 32 water eruptions in 2018.

The earthquake swarm at the western part of the national park lasted for three and a half months.

"Montana should take a closer look at the economics of wolf hunting," The Wolf Conservation Center said. "Yellowstone wolves are worth a lot more alive than dead."

Scientists analyzing volcanic samples in Italy find similar conditions preceded eruptions over the last 60,000 years.

Misinformation, one scientist said, "causes unnecessary and unfounded anxiety" about the iconic national park.

Mark Boyce has spent 40 years studying the park's ecosystems and says wolf reintroduction has been fascinating.

Boiling water, steam, mud and rock can be spewed up to 1.2 miles into the air.

Two years ago, a man died after falling into the Norris Geyser Basin in Yellowstone.

Climate change is causing wildfires in Yellowstone National Park to get bigger and burn for longer, a report has warned.

Park authorities said she was transported to a medical center "in good condition."

"The first thing that comes to my mind when I think back on it was just how loud it was, the roar of the eruption."

UNESCO has identified 1092 sites worldwide for protection because of their cultural, historical or scientific value or other significance. Here are the ones in North America.

The visitor was treated for minor injuries and taken to hospital.

"When you're pulling the crust apart and you're pumping it full of magma, you'd expect that it would probably fail on shorter timescales."

"We have zero concerns that anything is happening volcanically."

"Yellowstone is just a very swarmy place."

A recent study further unravels the mystery of Yellowstone's volcanic system.

There's a particular comfort in trying to figure out how the world will end.

"Man, the changes would be so much bigger than anything we've ever seen."