Yellowstone National Park is putting up stellar visitor numbers this year. However, there are growing concerns. The national park is facing a camping problem, with numbers continuing to decline.

The Greater Yellowstone Ecosystem’s grizzly population continues to stagnate geographically, a relatively new trend that wildlife managers say is related to bears saturating “suitable habitat” where ...

On Tuesday, as several tourists in Yellowstone National Park hiked toward the overlook at Grand Prismatic Spring, they paused to watch a grizzly bear forage alongside the trail. A surprise sighting, ...