On the western side of Glacier National Park, the Great Northern Traverse skirts the Canada border, crossing truly magnificent Continental Divide terrain before exiting the park at its northeastern boundary. At 58 miles, this is a long (seven- to ten-day) haul in grizzly country, requiring snowfield-crossing skills and strong legs. The trek begins along Kintla Lake and climbs to Boulder Pass on its way to the head of Waterton Lake, 32 miles in. Part two takes you another 26 miles through Waterton Valley, up Stoney Indian Pass, and through the wild and beautiful Belly River Valley to the Chief Mountain customs station.
To reach the hiking trailhead from Kalispell, drive north 33 miles on U.S. 2 to the parks west entrace at West Glacier, and then north to the trailhead in Kintla Lake Campground. Leave a second car at Chief Mountain customs station.
Overall, Great Northern Traverse is the 1st most popular hiking trail of all 19 hikes in Montana.