Why Mount Whitney is famous
Mount Whitney is the highest summit of the contiguous United States, the 48 states south of Canada, and of California and the Sierra Nevada. The current official height, 14,505 ft (4,421 m), is based on the NAVD 88 datum; older survey marks on the summit still show 14,494 ft and 14,496.811 ft, measured with earlier datums. Its prominence is 3,071 m (10,075 ft), and the nearest higher ground is in Colorado, more than 2,600 km away.
From the Owens Valley the mountain is part of a wall of granite pinnacles rising more than 3,000 m above Lone Pine. The granite belongs to the Sierra Nevada Batholith, the same rock that forms the rounded boulders of the Alabama Hills thousands of feet lower, just west of town. Whitney is also a meeting point of famous trails: the 340-km John Muir Trail from Yosemite Valley and the High Sierra Trail from the west side of Sequoia National Park both end on its summit.
Where it is and how to get there
Lone Pine, on US Highway 395 along the eastern foot of the Sierra, is the base for almost every trip. The Eastern Sierra Interagency Visitor Center, where permits, maps and bear canisters are handled, stands 2 miles (3 km) south of town at the junction of Highway 395 and State Route 136. From the only traffic light in Lone Pine, Whitney Portal Road climbs about 13 miles (21 km) west to Whitney Portal (2,550 m, 8,360 ft), a forested trailhead with parking, a campground and bear-proof food lockers. Parking is limited, so carpool. Black bears are very active at the Portal: never leave food or scented items in a car.
The west side of the mountain, in Sequoia National Park, has no road access; walkers who come from that side arrive on foot after several days on the John Muir or High Sierra Trail.
Routes
Mount Whitney Trail. The main route is 11 miles (17.7 km) each way, roughly 22 miles (35 km) round trip, with about 6,100–6,200 ft (1,870–1,890 m) of ascent. It was built in 1904 to a design by the local engineer Gustave Marsh and is non-technical when free of snow, usually from July to late September. From Whitney Portal the trail climbs through pine forest past Lone Pine Lake (about 3,020 m, 9,900 ft) to Outpost Camp (3,170 m, 10,400 ft), a wooded flat with a waterfall 3.8 miles (6 km) from the trailhead. Above Mirror Lake and Trailside Meadow, where camping is banned, it reaches Trail Camp (3,660 m, 12,000 ft) by a small lake, 6.3 miles (10 km) from the start and the last camp and reliable water on the way up.
From Trail Camp the trail attacks the headwall in 97–99 switchbacks (counts differ) to Trail Crest (4,145 m, 13,600 ft), where it enters Sequoia National Park. Some sections of the switchbacks have handrail cables, and early in the season this is where snow and ice make the trail dangerous. Beyond Trail Crest the route joins the John Muir Trail and follows the west side of the crest for about 2–2.5 miles past granite pinnacles to the broad summit plateau and the stone Smithsonian Institution Shelter. Day hikers should expect 12–14 hours for the round trip and start before dawn with a headlamp. Backpackers usually spend one or two nights at Lone Pine Lake, Outpost Camp, Consultation Lake (about 3,540 m, 11,600 ft) or Trail Camp to acclimatise, which also raises the chance of reaching the top.
Mountaineer's Route. First climbed by John Muir in 1873, this route follows the North Fork of Lone Pine Creek to Iceberg Lake below the east face and climbs a steep gully on the north side of the face. It is a class 3 scramble (PD+) on loose rock; when snow fills the gully, which is common until early summer, it needs an ice axe, crampons and the skill to use them. It requires a separate North Fork overnight permit, or a Whitney Zone day permit for a one-day push.
East Face and East Buttress. The East Face, first climbed in 1931, is one of the Fifty Classic Climbs of North America: mostly class 4 with free climbing up to 5.7. The East Buttress is another classic for rock climbers.
Permits, costs and rules
A wilderness permit is required all year to enter the Mount Whitney Zone, even for a day hike. From 1 May to 1 November quotas apply: 100 people per day with Day Use permits and 60 per day starting overnight trips on the Mount Whitney Trail. These permits are allocated by lottery on Recreation.gov. For the 2026 season applications were accepted from 1 February to 1 March, results were published on 15 March, winners had to confirm and pay by 21 April, and unclaimed dates were released for normal booking on 22 April at 7 am Pacific time. Each application lists up to 10 alternative dates and three alternate leaders.
- Fees (2026): a non-refundable USD 6 reservation fee per permit plus USD 15 per person for entering the Whitney Zone. No refunds, rain checks or discounts, and interagency passes are not accepted.
- Outside the quota season, from 2 November to 30 April, permits are still required but not limited; they can be reserved up to two weeks in advance.
- Permits must be printed before the no-show deadline (noon the day before for day use, 10 am on the entry day for overnight trips), and only the named leader or alternate may use them. Consecutive day permits are not allowed.
- Every hiker is expected to pack out solid human waste in a pack-out kit (WAG bag), given out free at the visitor center and the trailhead; there are no toilets on the trail.
- Bear-resistant food containers are required on overnight trips; groups are limited to 15 people; campfires, drones and pets in the national park section are prohibited.
When to go and weather
The classic season is July to late September, when the trail is usually free of snow. June often still has snow on the switchbacks and in the gullies, and October brings cold nights and the first storms. Summer afternoons regularly bring thunderstorms and lightning: plan to leave the summit by early afternoon, and turn back if clouds build. The exposed summit has killed by lightning before; the first recorded death there, in 1904, was a lightning strike, and the Smithsonian shelter was built afterwards. In winter and spring Whitney is a snow climb requiring winter mountaineering skills. Even in summer, wind on the summit plateau can make it feel close to freezing; bring warm layers.
Water
Once you leave Whitney Portal there are no taps on the trail. Water is available from Lone Pine Creek and the lakes along the lower trail, at Outpost Camp and Mirror Lake, and at the small lake at Trail Camp, which is the last reliable source going up. Above Trail Camp there is no water on the switchbacks, the crest or the summit, so fill at least 2–3 litres there for the final 1,000 m climb and return. All backcountry water should be filtered, treated or boiled. Camp at least 100 ft (30 m) from water, and never wash with soap in lakes or streams.
Mobile coverage and internet
The Forest Service and Inyo County Search and Rescue warn that most of the trail has no cell service: do not rely on a phone for communication or navigation. Lone Pine has normal coverage. Carry a map, leave your trip plan with someone at home, and consider a satellite messenger for emergencies. The emergency number in the United States is 911; it reaches Inyo County Search and Rescue when a call can get through.
Altitude, dangers and safety
The main problem for day hikers is altitude: starting at 2,550 m and climbing to 4,421 m in one day leaves no time to acclimatise, and headache, nausea and exhaustion above Trail Crest are common. Spending a night or two at Whitney Portal or higher before the hike helps. Learn the symptoms of altitude sickness and descend if they get worse. Other hazards are lightning on the crest, snow and ice on the switchbacks and the cables section early in the season, rockfall and loose ground on the Mountaineer's Route, cold and dark on the descent for parties who started late, and bears at the Portal and in camps. Set a turnaround time and keep the group together.
History and name
The Paiute name of the mountain is Tumanguya, "the very old man". In July 1864 the California Geological Survey named the peak after Josiah Whitney, the state geologist who led it. The survey's geologist Clarence King tried for years to reach the top; in 1871 he climbed what he thought was Whitney but was in fact nearby Mount Langley. On 18 August 1873 three fishermen from Lone Pine, Charles Begole, A. H. Johnson and John Lucas, made the first ascent and called the mountain "Fisherman's Peak". John Muir climbed it the same year by the gully now called the Mountaineer's Route. The Mount Whitney Trail opened on 22 July 1904, and the stone hut on the summit was completed in 1909 by Gustave Marsh for scientific work under the Smithsonian Institution.
Interesting facts
- The lowest and highest points of the contiguous United States are neighbours: Badwater Basin in Death Valley lies 86 m (282 ft) below sea level to the east. The Badwater Ultramarathon, held every July, runs 135 miles (217 km) from Badwater to Whitney Portal with about 13,000 ft (4,000 m) of climbing; the original idea was to link the two extremes.
- Pack-out kits for human waste have been required on Whitney since 2006.
- Whitney is the meeting point of two long trails: the John Muir Trail, which runs more than 200 miles (340 km) north to Yosemite Valley, and the High Sierra Trail from Crescent Meadow in Sequoia National Park.
- Clarence King's mistake left its trace on the map: Mount Langley, the peak he climbed in 1871 believing it was Whitney, is itself over 4,000 m high and lies a few kilometres to the south.
FAQ
How high is Mount Whitney? 4,421 m (14,505 ft) on the current NAVD 88 datum; older marks on the summit say 14,494 ft. It is the highest point in the United States outside Alaska.
How long does it take to climb Mount Whitney? Day hikers need 12–14 hours for the 22-mile (35 km) round trip on the Mount Whitney Trail; backpackers usually take 2–3 days with camps at Outpost Camp or Trail Camp.
Is Mount Whitney difficult? In summer the trail is non-technical but very strenuous: about 1,900 m of ascent at high altitude. With snow or ice it requires winter mountaineering skills. The Mountaineer's Route is a class 3 scramble.
Do I need a permit, and how much does it cost? Yes, all year. From 1 May to 1 November permits are won in a lottery held in February. For 2026 the cost was a USD 6 reservation fee per permit plus USD 15 per person.
Is there water on the trail? Yes, in Lone Pine Creek and the lakes up to Trail Camp at 12,000 ft, the last reliable source. Treat all water, and carry 2–3 litres from Trail Camp to the summit.
Is there mobile coverage on Mount Whitney? Mostly no. Officials warn that most of the trail has no cell service; carry a map and consider a satellite messenger. The emergency number is 911.
When is the best time to climb Mount Whitney? From July to late September, when the trail is usually snow-free; start early to avoid afternoon thunderstorms.
Where does the John Muir Trail end? On the summit of Mount Whitney; hikers finishing the trail still have to descend the Mount Whitney Trail to Whitney Portal, and need a permit that includes the Whitney exit.