I too think you should be fine. The statement above makes a great deal of sense. However, in planing a trip to Yellowstone last year, a neighbor of mine here in NC FL, a retired National Park Ranger, told me to be sure to take pepper spray and a whistle. And he told me I should know the difference between grizzly bear and black/brown bear scat. When I told him I didn't know and how can you tell his reply was "the grizzly bear scat was the one with the pepper spray can and whistle in it." Enjoy your trip.