John Muir Trail / Mount Whitney Summit

The Mount Whitney section of the John Muir Trail leads to the highest point in the contiguous United States at 14,505 feet, reached via Whitney Portal near Lone Pine in California's Eastern Sierra Nevada. The trailhead at Whitney Portal sits at 8,365 feet elevation, and the summit requires approximately 6,100 feet of additional climbing over 11 miles one way — typically completed as a two-day backpacking trip with camping at Trail Camp or Guitar Lake, though extremely fit hikers attempt the full 22-mile round trip in a single day.

Access requires driving California State Route 395 to Lone Pine, then following Whitney Portal Road 13 miles west into the Alabama Hills and the steep Eastern Sierra escarpment. Parking at Whitney Portal fills quickly during summer weekends. A wilderness permit is required for all overnight trips and for day hikers, issued by lottery through Recreation.gov each spring. Quotas limit daily entries to protect the fragile alpine ecosystem above 12,000 feet.

From Whitney Portal, the main trail climbs through lodgepole pine forest past Lone Pine Lake at 3.5 miles and reaches Trail Camp at 12,039 feet — the primary overnight camping location. Above Trail Camp, 97 switchbacks carved into the eastern granite face of the ridge gain roughly 1,700 feet in under 2 miles. These switchbacks are fully exposed to sun, wind, and afternoon lightning and should be cleared by noon. The summit trail along the crest then follows a relatively level ridge to the stone summit hut.

Trail surface transitions from maintained dirt in the lower sections to loose talus and granite slabs above 13,000 feet. Altitude sickness is a significant risk for hikers not acclimatized to high elevation. Spending at least one night in the Eastern Sierra between 6,000 and 8,000 feet before the attempt is strongly recommended. Human waste bags (wag bags) are required in the Whitney Zone, as no burial is permitted above treeline.