By Michael Lanza
The three bighorn sheep lifted their heavily horned heads to gaze at us, but never budged from their beds of grass amid boulders on a mountainside above the Highline Trail in Glacier National Park. The mountain goats we saw on various occasions gave us little more attention than that. And fortunately, the grizzly bear sow with two cubs in tow that passed within about 30 feet of us—an encounter of less than 10 seconds that is etched into my memory forever—gave us no more than a passing glance.