The 20 Most Challenging Hikes in America, Ranked

10.The Enchantments Traverse, Alpine Lakes Wilderness, Washington

Difficulty: Class 3

The Enchantments Traverse offers an unforgettable 18.3-mile trek through Washington's Alpine Lakes Wilderness, featuring crystal-clear glacial lakes, towering granite peaks, and alpine meadows. A true test of endurance, the climb up Aasgard Pass with a 2,000-foot elevation gain challenges even the most seasoned hikers. This trek is best undertaken between July and October.

Key highlights include Colchuk Lake, Dragontail Peak, and plenty of wildlife, including mountain goats. Camping permits are required for overnight stays, but fit hikers may complete the journey in one day. Dogs are not permitted, helping preserve the area's untouched beauty.