YELLOWSTONE NATIONAL PARK, Wyo. — A bison has injured a hiker in Yellowstone National Park.
How the bison hurt the unidentified woman Sunday near a trail at the northern end of Yellowstone Lake is unclear.
A park spokeswoman describes the injuries as significant.
The Billings Gazette reports that she was flown to a hospital in Idaho Falls, Idaho.
Bison injure one or two people in Yellowstone a year on average.
Park officials urge people to stay at least 25 yards away from large animals and at least 100 yards away from wolves and bears.