They warn you not to get too close to wildlife for a reason.

An unidentified girl was with her family Monday around the Old Faithful area of the park in Wyoming when a bison suddenly charged her and tossed her several feet in the air. The girl was taken to a hospital for treatment and was released.

Hailey Dayton, 18, filmed the incident while she was visiting the park on a family road trip.

“My brother and I were looking at the hot springs, and we saw a bunch of people running down the path to the bridge. We saw through the trees some people petting the bison, super close,” she told NBC News.

"Because it was agitated by all the people and noise, it just kind of attacked," she said. "After that, everyone was screaming. There were a bunch of kids crying."

The National Park Service routinely warns visitors not to approach wildlife and to stay at least 25 yards away.

Read more at NY Post / NBC News.