Ahead of a potential Yellowstone grizzlies delisting move, at least one researcher has called into question the model used to estimate their population.

Delaware North has announced the purchase of West Yellowstone-based travel company Yellowstone Vacations.

Biologists in Yellowstone National Park are on the alert for a new ecosystem threat: mussels.

Yellowstone Superintendent Dan Wenk has expressed concern over the future of Yellowstone’s grizzly population.

Mammoth Hot Springs Hotel will remain closed for the entirety of 2017.

Bison managers now say upward of 1,200 to 1,300 bison need to be culled to curb growth in Yellowstone National Park’s herd.

Officials in Yellowstone National Park say 900 bison would need to be removed to curb the herd’s growth.

Superintendent Dan Wenk predicts record numbers of people will visit Yellowstone National Park over the coming years.

Although the Interior Department has temporarily blocked new mining claims north of Yellowstone, it would take Congress to make the ban permanent.

It’s that time of year again: lake trout removal numbers for Yellowstone Lake are in—and echoing last year, they’re up significantly.