I was leading a hike today from Unicoi Gap to Tray Mountain Shelter. Just after we topped Rocky Mountain, the 5 people in front began running and yelling "Bees!". We had walked into a cluster of 3 yellow jacket nests that a bear had recently dug into. The bees were pretty agitated and chased this group for a hundred yards or more down the trail with multiple stings (10 or more) per person. Only one of the three of us in the back got stung, but they were hit 3 times. We backed up as soon as the group in front started yelling and the bees were too busy chasing the group in front to notice us, I guess. Needless to say, the hike was cut short. For once, I was glad that I'm a slow hiker and was "sweeping" at the back of the group.
I had had hikers get stung on this same hike last year, but not nearly as bad, so I had told this years group to be sure and bring appropriate medications if they were allergic.
The front group saw a bear cub shortly after they stopped to regroup, so I wonder if he had been disturbing the bees when we walked up.
Be careful out there!