From the fiery deserts to the frost-kissed mountain peaks, we're delving into the 7 most challenging and rewarding long-distance hikes that America has to offer.

Pacific Crest Trail: California, Oregon, and Washington, 2,663 miles

John Muir Trail: California, 210 miles  

Continental Divide Trail: New Mexico, Colorado, Wyoming, Idaho, and Montana, 3,100 miles  

Appalachian Trail: 14 states from Georgia to Maine, 2,185 miles  

The Ice Age Trail: Wisconsin, 1,200 miles  

Tahoe Rim Trail: Nevada and California, 165 mile 

Florida Trail: Florida, 1,300 miles