The Pacific Crest Trail is 2,663 mi (4,286 km) long and ranges in elevation from just above sea level at the Oregon–Washington border to 13,153 feet (4,009 m) at Forester Pass in the Sierra Nevada. The route passes through 25 national forests and 7 national parks. (…)
The route is mostly through National Forest and protected wilderness. The trail avoids civilization, and covers scenic and pristine mountainous terrain with few roads. It passes through the Laguna, San Jacinto, San Bernardino, San Gabriel, Liebre, Tehachapi, Sierra Nevada, and Klamath ranges in California, and the Cascade Range in California, Oregon, and Washington states. (…)
Thru-hiking is a long commitment, usually taking between four and six months, that requires thorough preparation and dedication. Although the actual number is difficult to calculate, it is estimated that around 180 out of approximately 300 people who attempt a thru-hike complete the entire trail each year. The Pacific Crest Trail Association estimates that it takes most hikers between 6 and 8 months to plan their trip.
/via Bede Márton