Occurred on August 20, 2016 / Glacier National Park, Montana, USA
Info from Licensor: "We were hiking on a trail in Glacier National Park to see a waterfall. Along the way someone in front of us spotted a grizzly bear in the berry bushes. While we were trying to see him, we turned and looked down the path we just came up and there was another grizzly 50 feet behind us. We all said "Oh S**t", stay calm, look down and slowly walk backwards. We did this and the bear followed us for about a 1/4 of mile, 30 minutes. We saw him take a poop and go for a swim."