The video was posted on YouTube in late February. It's gone viral. It seems the snowmobilers got a little to close for the bison's comfort, they did not back off when it showed it was agitated. Some times the best thing to do is just slowly walk it back.

The video above shows the worst of the charges made by the bison. The video below shows the animal getting annoyed by the machines then making its first few runs.

On Feb. 23, YouTube user Eric P posted three videos of the incident.

The Daily Mail posted a story of the encounter.

"And in a particularly scary moment the driver of sled seven is forced to think on their feet as they find the bison directly in front of them," writes the Daily Mail.