The 20 Most Challenging Hikes in America, Ranked

1.John Muir Trail, California

Difficulty: Class 5

The John Muir Trail is a legendary 211-mile hike through California’s Sierra Nevada Mountains, stretching from Yosemite Valley to the summit of Mount Whitney, the highest peak in the continental U.S. With an elevation gain of 47,000 feet, this extremely strenuous trail traverses some of the most breathtaking landscapes in the country, including Yosemite, Sequoia, and Kings Canyon National Parks.

This iconic trek, which intersects with the Pacific Crest Trail, offers awe-inspiring mountain vistas and requires hikers to be in top physical condition. Completing the entire trail takes 2-3 weeks, with the best time to hike being from July to September. The John Muir Trail is renowned for its dramatic views and rigorous challenge, making it a must-do for experienced hikers.