Glacier National Park [Montana - USA] has a very high concentration of grizzly bears and black bears.
They are often seen in the high meadows on the slopes of the mountains surrounding the parking lot near Swifcurrent Inn. In fact, scanning the high slopes with binoculars or telescopes is a favourite pastime of numerous visitors, especially in the evenings.
Bears, grizzlies in particular, can easily roam 30, 40 plus kilometers a day, so beware of the probability of bear presence while hiking. Let them know you are there, but please leave those bells at home!!! The Park Ranger explained that the bells are basically useless devices for warning off bears and very annoying to humans.
On August 25, 2005 two hikers were attacked and injured by a sow with two cubs on the Grinnell Glacier trail.
Always check with the Park Ranger office about possible trail closure due to bear activity.
LA Times article
:::...What to do if you encounter a bear [by Glacier National Park]