Mount Whitney

California Class 1 Sierra Nevada
Mount Whitney summit landscape
Rank 02

Elevation landscape

14,505 ft

Prominence height

10,075 ft

Difficulty signal_cellular_alt

Class 1

Est. Time schedule

1–2 days

Distance route

~19–25 miles round-trip

Vert Gain trending_up

~5,350–6,850 ft

Mount Whitney is the highest point in the contiguous United States, rising above Lone Pine in the Owens Valley to the east. Located on the Sierra Crest in eastern California on the Inyo/Tulare county line, the peak is composed primarily of Cretaceous granite exposed by relatively recent uplift and erosion that shaped the eastern Sierra Nevada.

The peak was named in 1864 for California State Geologist Josiah Whitney. With 10,075 feet of clean prominence, it ranks among the most topographically significant peaks in North America and the second most prominent in the contiguous United States.

The standard route follows a well-established trail, but the 6,100-foot elevation gain and altitude exposure demand proper acclimatization and preparation.

Recommended Route

Mount Whitney Trail

The Mount Whitney Trail is the primary and most heavily traveled route, beginning at Whitney Portal 13 miles west of Lone Pine via Whitney Portal Road. The route covers 11 miles one-way with 6,100 feet of elevation gain, departing from 8,365 feet and summiting at 14,505 feet. The trail is non-technical, maintained hiking throughout most of its length, with rocky and exposed sections near Trail Crest and the summit that require careful footing but no climbing or roping.

The trail ascends in recognizable segments. Early miles gain elevation steadily through coniferous forest to Lone Pine Lake at 2.8 miles and 9,700 feet, a popular turnaround point for day hikers. Outpost Camp at 3.8 miles and 10,335 feet serves as an acclimatization option for parties choosing a leisurely multi-day approach. Most overnight parties continue to Trail Camp at 6.2 miles and 12,000 feet, the established staging ground where most climbers spend the night before summiting.

The most demanding section follows immediately. The 99 Switchbacks are a steep and sustained climb spanning 6.2 to 8.2 miles where constructed switchbacks wind upward through increasingly exposed terrain. Trail Crest at 8.2 miles and 13,777 feet marks the highest point on the trail proper. From there, the final push to the summit covers the last 3 miles across rocky terrain with moderate exposure and loose rock in sections. The summit register and a brass USGS benchmark occupy the highest point.

Key Landmarks

  • Lone Pine Lake (9,700 ft)
  • Outpost Camp (10,335 ft)
  • Trail Camp (12,000 ft)
  • The 99 Switchbacks (6.2–8.2 miles)
  • Trail Crest (13,777 ft)
warning

A pre-dawn start from Trail Camp, often around 4 AM, is strongly recommended for summit-day hikers. The upper mountain is fully exposed to afternoon thunderstorms and high winds. Experienced parties prioritize an early summit and descent.

Permits & Camping

Climbing Permits

A wilderness permit is required year-round to enter the Mount Whitney Zone, including both day-use and overnight trips. During quota season, May 1 through November 1, the number of hikers is limited, and the main Mount Whitney day-use and overnight trail permits are handled through the lottery system. Inyo National Forest currently limits the quota season to 100 day-use hikers and 60 overnight hikers per day. Outside quota season, November 2 through April 30, permits are still required but are not limited by quota; current Inyo guidance says they are booked online up to two weeks before the trip.

Camping & Wilderness

On-route camping is established at Trail Camp at 12,000 feet, the primary overnight staging area with defined sites. Outpost Camp at 10,335 feet provides an alternative for parties seeking a more gradual acclimatization schedule. Trail Camp is the standard high camp on the Mount Whitney Trail. Additional camping restrictions apply in portions of the Mount Whitney Zone; consult current Inyo National Forest regulations before planning camps above Trail Camp. Water is available at several points below Trail Camp, but all sources require treatment and late-season reliability varies. Food storage regulations in the Mount Whitney Zone are strict; verify current requirements with Inyo National Forest before your trip. Black bears are a major issue around Whitney Portal, and marmots may raid unsecured gear higher on the trail. Store food, trash, and scented items properly. Whitney Portal Campground near the trailhead provides staging infrastructure for parties arriving the night before.

Safety Information

Technical Requirements

  • Altitude Acclimatization
  • Exposed Scrambling
  • Alpine Start

Known Hazards

  • Altitude Sickness
  • Lightning Exposure
  • Extreme Wind & Weather
  • Exposed Scrambling
  • Loose Rock & Scree
  • Bears & Wildlife

Data source: PeakList.org (elevation, prominence); PeakBagger/SummitPost (route, class, hazards, permits)

add