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.
The trails and attractions of this national park in Utah are spread throughout three regions: Zion Canyon, Kolob Canyons, and Zion Wilderness.
Even experienced hikers will find this Arizona national park to be an amazing journey due to its enormous size and distinct climate.
Jasper National Park, the largest national park in the Canadian Rockies, has a vast route system.