Visitors spotted a grizzly bear that was awake earlier than usual in Yellowstone.

The long-tailed weasel ( Mustela frenata) is the largest of our three species. It measures 12 to 20 inches, including a ...

This video captures a 6-day winter expedition in Yellowstone National Park at extreme cold temperatures around -30ºF, ...

YELLOWSTONE, Mont. — Yellowstone National Park announces its winter season officially begins on Monday, December 15. Throughout the season, visitors can travel most of the park's roads by approved ...

YELLOWSTONE NATIONAL PARK, Mont. — The winter season at Yellowstone National Park's beings on Monday, Dec. 15. From mid-December to mid-March visitors can travel most of the roads from North, East, ...

YELLOWSTONE NATIONAL PARK, Wyo. (AP) — Yellowstone National Park will open its gates to tourists riding snowcoaches and snowmobiles on Sunday. Beginning at 8 a.m., visitors will be able to travel the ...

YELLOWSTONE NATIONAL PARK, Wyoming -- A winter wonderland appeared at Yellowstone National Park as part of a waterfall freezes on a 17-degree day. Yellowstone National Park shared this video on their ...

Yellowstone National Park sign at the North Entrance (Photo by Jim Peaco | Yellowstone National Park). Yellowstone National Park officials announced Tuesday that all park roads that were closed due to ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. A 45-day public comment period was reopened regarding a proposal to allow 318 snowmobiles per day ...

Add Yahoo as a preferred source to see more of our stories on Google. Yellowstone's new 1,175-foot bridge over the Yellowstone River opens to traffic, but other park construction projects face ...