Yellowstone National Park, a sprawling wilderness in the United States, offers one of the best opportunities to encounter ...

The first snow usually falls on Yellowstone by late September, hence the park’s mammals need to take full advantage of the rich pickings while they can and the Lamar Valley represents the world ...

A huge herd of bison trekked through deep snow in Yellowstone National Park, surreal video shows. Screenshot of Yellowstone ...

“Bison herd making tracks and shadows this past weekend in Yellowstone’s Lamar Valley at about -20 degrees F,” the group said in the caption. The video shows a herd of at least 50 bison ...

Catherine Parker Located in the quiet northeast corner of Yellowstone, Lamar Valley is a wildlife haven along the Lamar River. In fact, this valley is often referred to as "America's Serengeti ...