The roughly 1 million acres of wilderness that make up Glacier National Park in northern Montana are traversed by more than 700 miles of hiking routes.
The majority of tourists visit Yosemite National Park's Yosemite Valley region to hike some of the park's most well-known trails.
A hiker's paradise, Yellowstone National Park in Wyoming, Montana, and Idaho has more than 2.2 million acres and more than 1,000 miles of hiking trails.
Visitors to Zion National Park are towered over by reddish sandstone cliffs. The trails and attractions of this national park in Utah are spread throughout three regions: Zion Canyon, Kolob Canyons, and Zion Wilderness.
This Arizona national park's enormous size and distinct climate make for an exciting excursion, even for experienced hikers.
Jasper National Park, the largest national park in the Canadian Rockies, has a vast route system.
The several hiking areas in Banff, Alberta, are well known for having more than 1,000 miles of well-maintained trails.
Being the spine of Grand Teton National Park, the Teton Range offers hikers one-of-a-kind views as they wind up and around the peaks.