Mount Whitney Trail

The Mount Whitney Trail is a roughly 17-km point-to-point trail in California, United States, climbing about 2,012 m of elevation from Whitney Portal to the 4,421 m summit over 1 to 3 days. Rated very strenuous, it delivers hikers to the highest point in the contiguous United States across granite switchbacks and an exposed alpine crest.

About the Mount Whitney Trail

The Mount Whitney Trail is the standard route up Mount Whitney (4,421 m / 14,505 ft), the tallest peak in the Lower 48 states. The trail begins at Whitney Portal, a trailhead at 2,539 m (8,330 ft) reached by a 21-km mountain road west of the town of Lone Pine. From there it climbs roughly 2,012 m over about 17 km one way to the summit, making the round trip close to 34 km. As a Regional Walking Network (RWN) route of major significance in the eastern Sierra Nevada, it draws tens of thousands of permit applicants every year.

Although the path is well graded and never requires technical climbing or ropes in summer conditions, the combination of distance, relentless elevation gain and thin air above 4,000 m makes it genuinely demanding. Most fit hikers complete it as a single very long day of 12 to 18 hours, while others split it into two or three days using camps along the way. The trail is managed by the Inyo National Forest, and a permit is required for all day and overnight use between 1 May and 1 November.

The scenery is the payoff: glacial lakes, the famous 99 switchbacks bolted into granite, the dramatic notch of Trail Crest, and a final ridge walk with views east to the Owens Valley and west across the John Muir Wilderness. If you are training for the climb, you may find our breakdown of how many calories you need hiking a full day helpful for fuelling such a long effort.

Altitude is the factor that catches most hikers out. The summit sits more than 4,400 m above sea level, and the trailhead alone is higher than many alpine peaks in Europe. Acute mountain sickness can strike even experienced hikers who ascend too fast, so it pays to spend at least one night camping or sleeping near Lone Pine at around 1,200 m and, ideally, a second night higher still before your attempt. Drinking plenty of water, walking at a steady pace, and being willing to turn back are the simplest defences. Roughly one in three day hikers who set out does not reach the summit, most often because of altitude, fatigue or afternoon weather rather than the trail's technical difficulty.

Route Overview & Stages

The table below breaks the climb into its recognised landmarks. Distances are measured one way from Whitney Portal; elevation gain is the approximate cumulative climb to each point.

The cumulative one-way distance is approximately 17 km with around 2,012 m of climbing. Because the route is hiked as an out-and-back to the same trailhead, plan on roughly 34 km and 12 to 18 hours of moving time for a single-push day, or break it across Outpost Camp or Trail Camp for an overnight.

Highlights & Points of Interest

• Lone Pine Lake (3,000 m): The first major water stop at about 4.5 km, a popular turnaround for hikers without a summit permit and a fine spot to gauge how your legs feel at altitude.
• Outpost Camp (3,140 m): A sheltered, tree-ringed camp beside a small waterfall at 6.1 km, the lower of the two main overnight options and quieter than Trail Camp.
• Mirror Lake (3,290 m): A photogenic alpine tarn reflecting the surrounding granite walls, sitting just above Outpost Camp.
• Trail Camp (3,658 m): The highest camp on the route at roughly 9.7 km and the launch point for most summit attempts; it is the last reliable water source before the switchbacks.
• The 99 Switchbacks: An iconic engineered staircase climbing roughly 490 m to Trail Crest, fitted with a steel cable handrail for the exposed icy section early in the season.
• Trail Crest (4,145 m): The dramatic notch in the Sierra crest where the trail meets the John Muir Trail and reveals sweeping western views into Sequoia National Park.
• Mount Whitney Summit (4,421 m): The roof of the contiguous United States, marked by a stone summit hut built in 1909 and a summit register for those who make it.

Best Time to Hike the Mount Whitney Trail

The reliable hiking window runs from July through early October, when the trail is generally free of snow and the 99 switchbacks can be climbed without an ice axe or crampons. Before July, lingering snowfields on the switchbacks and above Trail Crest demand winter mountaineering skills, and conditions vary year to year depending on the Sierra snowpack.

The single best month is September. Snow has fully cleared in most years, daytime temperatures at altitude are mild, afternoon thunderstorms are less frequent than in midsummer, and the crowds of July and August have thinned. As of 2026, the permit lottery and on-trail conditions still follow this pattern, so a mid-September attempt offers the strongest combination of stable weather and a snow-free path.

Whatever the month, start before dawn. Summer thunderstorms build over the Sierra crest by early afternoon, and lightning on the exposed final ridge is the trail's most serious objective hazard. Aim to be off the summit by noon. Nighttime temperatures at Trail Camp can drop below freezing even in August, so pack accordingly.

Practical Information

Accommodation

There are no huts on the Mount Whitney Trail; overnight options are camping or lodging in Lone Pine. The two trailside camps are Outpost Camp (3,140 m) and Trail Camp (3,658 m), both included free with an overnight wilderness permit. At the trailhead, Whitney Portal Campground offers 43 reservable sites at about USD 26 (roughly EUR 24) per night, while the walk-in Whitney Trailhead Campground has 25 first-come sites at a similar price, intended for one night before your hike. In Lone Pine, motels and inns typically run EUR 90 to 140 per night in season. Wild camping is only permitted within the bounds of your dated wilderness permit and a bear canister is mandatory for all overnight food storage.

Getting There & Back

The trailhead is Whitney Portal, reached by driving 21 km west from Lone Pine on Whitney Portal Road off US Highway 395. Lone Pine is about a 3-hour drive from Los Angeles and Burbank airports, roughly 2 hours from Mammoth Yosemite Airport (the closest), and around 4 hours from Las Vegas. There is no public transport to the trailhead itself, so a rental car is effectively essential; the Eastern Sierra Transit Authority runs limited bus service along US 395 to Lone Pine, but you will still need to arrange a shuttle or taxi for the final road to the Portal. Overnight parking at Whitney Portal requires your permit displayed on the dashboard.

Permits & Fees

A permit is mandatory for all hiking in the Mount Whitney Zone from 1 May to 1 November and is awarded through a quota lottery. Applications open 1 February and close 1 March, with results announced around 15 March; the application fee is USD 6 (about EUR 6) and the per-person reservation fee is USD 15 (about EUR 14) if selected. Any unclaimed permits are released on a rolling basis from 22 April. Day hikers and overnight backpackers draw from separate quotas, so choose your style when you apply. Confirm current rules with the managing agencies on the Inyo National Forest Mount Whitney page and the National Park Service Whitney planning page before you travel.

Gear & Packing List

The Mount Whitney Trail is a high-altitude day or overnight effort where weight and weather protection matter equally. Layers are non-negotiable: a warm summit jacket, a wind shell, gloves and a hat, even in July. Carry a headlamp for the pre-dawn start, at least 2 to 3 litres of water capacity with a filter, trekking poles for the switchbacks, and a bear canister if you camp. Sun protection is critical above the treeline, where UV is intense.

For a fast-and-light single-day push, a frameless ultralight pack such as the 2400 Windrider carries a day's kit comfortably. If you are splitting the climb over two or three days with a bear canister and a sleeping system, the larger 3400 Windrider or a robust Arc Haul Ultra 60L gives the volume and structure you need. For choosing between these and other models, our roundup of the best ultralight backpacks of 2026 tests and ranks the leading options. Build your full kit and track every gram in the HikeLoad gear database.

Similar Trails You Might Like

If the high alpine and big-objective character of Mount Whitney appeals, several other United States routes scratch the same itch, from long-distance crest-line journeys to short but intense summit scrambles. The trails below range from multi-thousand-kilometre thru-hikes to demanding single-day classics.

• Pacific Crest Trail — the legendary Mexico-to-Canada crest route that passes within reach of Whitney itself
• Continental Divide National Scenic Trail — a 4,988 km high-country thru-hike along the spine of the Rockies
• Half Dome Trail — Yosemite's iconic cable-assisted granite ascent
• Angels Landing Trail--West Rim Trail — Zion's exposed, chain-protected ridge climb
• Enchantments Traverse — a strenuous alpine lakes crossing in Washington's Cascades

For an international high-mountain contrast, the dramatic Theth to Valbona trail in Albania offers a comparable pass-crossing day in the Accursed Mountains.

Frequently Asked Questions

When is the best time to hike the Mount Whitney Trail?
July through early October is the reliable snow-free window, and September is the single best month. By then snowfields on the 99 switchbacks have cleared, afternoon thunderstorms are less frequent than in midsummer, and the heaviest crowds have thinned. Always start before dawn and aim to be off the exposed summit ridge by noon to avoid lightning.

How difficult is the Mount Whitney Trail?
It is rated very strenuous. The route climbs about 2,012 m over 17 km one way to 4,421 m, the highest point in the Lower 48. No ropes or technical climbing are needed in summer, but the distance, relentless ascent and thin air make altitude sickness a real risk. Good fitness and acclimatisation are essential for a safe summit.

How many kilometres per day should I plan?
Day hikers cover the full 34 km round trip in one long 12-to-18-hour push, which suits very fit, acclimatised hikers. Splitting the climb is gentler: camp at Outpost Camp (6.1 km in) or Trail Camp (9.7 km in) on day one, summit and descend on day two. A three-day plan keeps daily distances under 12 km and aids acclimatisation.

Where can I sleep on or near the trail?
There are no huts. Overnight hikers camp at Outpost Camp (3,140 m) or Trail Camp (3,658 m), both free with a wilderness permit and requiring a bear canister. At the trailhead, Whitney Portal Campground costs about EUR 24 per night. Motels in Lone Pine, 21 km away, typically run EUR 90 to 140 per night during the summer season.

Do I need a permit, and how do I get one?
Yes. A permit is mandatory from 1 May to 1 November and is awarded by a quota lottery. Applications open 1 February and close 1 March, with results around 15 March. The application fee is about EUR 6 and the reservation fee about EUR 14 per person. Unclaimed permits are released on a rolling basis from 22 April through Recreation.gov.