The Pacific Crest Trail (PCT) extends 2650 miles from Mexico to Canada. It follows the crests of the mountain ranges in California, Oregon, and Washington, crossing 27 National Forests and 7 National Parks. At the border between Sequoia National Park and Yosemite National Park, the PCT reaches its highest elevation, 13,200 feet.
The PCT avoids roads and cities, traversing predominately wilderness areas. The trail passes through a variety of ecosystems, including desert, old-growth forest, alpine tundra, grassland, and rainforest. Thru-hikers must complete long waterless sections in the desert, ford rivers, and traverse snow fields. Also, due to snowfall in the Sierra Nevada and Cascade mountain ranges, thru-hiking is only possible within a five and a half month time window, requiring a pace of roughly twenty miles per day.