For Michael Nichols, National ... winter Yellowstone can be a tough place for grazers; to find grass, bison sometimes use their massive heads to plow away deep snow. But along the Firehole River ...

In a 1954 paper titled “Does the cold of winter affect the thermal ... of geysers and hot springs along the Firehole River, Yellowstone National Park, Wyoming,” and “Story of Great Fountain ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park ... in the Yellowstone River over the winter ...

Firehole Canyon Drive stands out since it takes visitors past a waterfall and to a Yellowstone swimming ... stretch of the Firehole River. Unlike other places in the park, the river here runs ...

Yellowstone National Park is famous for many things ... that to the east it drains into the Lewis River, and to the west it drains into the Firehole River. Both of these rivers are tributaries ...

Just the day before, a pack of wolves known as the Wapiti had found a large bull bison that was weak and injured. Based on its size, this big boy was near the end of its lifespan and the winter ...

Of the more than 900 miles of trails available in Yellowstone National Park, Mystic Falls Trail ... From there, you'll cross the Firehole River and walk along a boardwalk before you get to the ...

Yellowstone National Park, known for being America's first ... trail is an easy 5-mile round trip hike that follows the Firehole River. The trail leads to the Lone Star Geyser, which erupts ...

Based on its size, this big boy was near the end of its lifespan and the winter weather was taking ... All of this took place along the Firehole River in Yellowstone this past week while I was ...