From the front page alerts of Grand Teton National Park
Bears are active in Grand Teton
Black and grizzly bears are roaming throughout the park--near
roads, trails and in backcountry areas. Hikers and backcountry users are
advised to travel in groups of three or more, make noise and carry bear
spray. Visitors must stay 100 yards from bears.
I do have a bear bell and a bad singing voice. Also, I'm staying in a tent cabin in a place I think will be like Curry Village in Yosemite (minus the falling boulders) so perhaps I can recruit some also-afraid-of-bears buddies.