The grizzlies still wonder through the campgrounds in WY and MT looking for food. They appear not to be afraid of humans; and if surprised they probably will attack. I know when I was walking the dogs in and around, I carried the bear spray and a .44 or a 12-gauge slung over the shoulder. Last couple of years, they were all over the campgrounds I was camping in; once in a while they were seen, most of the time you just had to be careful where to step. They left some big ones lying around. Since all were putting food in the bear containers and most had large dogs, they did not tend to hang around, but looks like they continued to return to have a look. But the only time I have run into grizzlies directly was hiking and then bear spray did the job. Did have a black in MT one year scare the you know what out of a guy, but he was actually cooking bacon on the outside grill at about 5:30-6 AM. He jumped into his hard sided trailer, and bear had a great breakfast. An hour later he left (the guy, the bear I hear left after eating).