Standard Couloir vs South Face
The world’s fourth highest peak shares its approach, base camp, and lower mountain entirely with Everest — yet reaches a different summit via the most extreme technical face in Himalayan mountaineering. Here is how the Standard Couloir and the legendary South Face compare, and what each demands of the teams that attempt them.
Both Routes at a Glance
Lhotse has two routes: the Standard Couloir used by virtually all permit holders, and the South Face — one of the most technically demanding walls in Himalayan mountaineering, rarely completed and never commercially guided. The mountain’s most distinctive feature is that its Standard Couloir shares the Khumbu Icefall, Western Cwm, and Camp 2 entirely with Everest’s South Col route, before branching off onto the Lhotse Face proper above 6,400m. This shared infrastructure is both a logistical advantage and the reason many climbers combine Lhotse and Everest in a single expedition.
| Metric | Standard Couloir | South Face |
|---|---|---|
| Technical grade | D (couloir + upper face)standard | ED (extreme — one of hardest in Himalaya) |
| Shared with Everest | Yes — BC to Camp 2 identicalinfrastructure advantage | Base camp only |
| Khumbu Icefall | Yes — mandatory (same as Everest SC) | Avoided — different approach |
| High camp altitude | Camp 4 — 8,150mwell-established | ~7,800m (self-established) |
| Typical duration | 50–65 daysefficient | 60–80 days |
| Success rate | 30%achievable | ~4% (extremely limited) |
| Nepal permit (2025) | $8,000/person (NMA)same | $8,000/person |
| Lhotse–Everest combo | Yes — common & efficientunique advantage | Not combined |
| Fixed rope system | Full — shared Everest Icefall Doctors + Lhotse-specific above C2 | Self-establish entirely |
| Commercial guiding | Yes — all Everest operators also offer Lhotse | None |
| Crowd level | Moderate — shares Icefall with Everest teams | Minimal |
| Best season | May (pre-monsoon)same as Everest | May (pre-monsoon) |
Because the Standard Couloir shares the Khumbu Icefall, Western Cwm, and Camp 2 with Everest’s South Col route, many expeditions attempt both peaks in a single season. Teams acclimatized for Everest are already acclimatized for Lhotse — the summit pushes depart from the same base camp and the approach carries are shared. A combined Everest–Lhotse expedition requires only one set of approach logistics, one Icefall crossing schedule, and one base camp infrastructure investment. This combination is offered by most major Everest operators and represents one of the most efficient double-summit strategies in 8,000m mountaineering.
Standard Couloir (Normal Route)
Standard RouteThe Standard Couloir begins at Everest Base Camp (5,364m), crosses the Khumbu Icefall, traverses the Western Cwm, and reaches Camp 2 / Advanced Base Camp (6,400m) on terrain entirely shared with Everest’s South Col route. Above Camp 2, the routes diverge: Everest teams turn right toward the South Col while Lhotse teams continue straight up the Lhotse Face — a 1,600m wall of glacier and mixed terrain — through Camp 3 on the Lhotse Face and Camp 4 at 8,150m before the final couloir push to the summit at 8,516m.
Overview & Character
The Standard Couloir’s 30% success rate is 2 points lower than Everest’s South Col despite sharing most of its infrastructure — reflecting the Lhotse Face’s steeper and more sustained technical terrain above Camp 2 and the final couloir’s demanding character at extreme altitude. The Lhotse Face is one of the most technically demanding sections of any standard 8,000m route in the database: 1,600m of 40–50 degree ice and mixed terrain with sustained fixed rope movement at altitude.
Teams that are acclimatized and logistically prepared for Everest find Lhotse’s additional technical demands manageable from the shared infrastructure. Teams that underestimate the Lhotse Face’s steeper character relative to Everest’s South Col approach above Camp 2 regularly find themselves in difficulty on the upper face. The Lhotse Face is where the route separates from the Everest experience most decisively.
Camp Profiles
Key Sections & Hazards
Route-Specific Gear Notes
Gear requirements are essentially identical to Everest’s South Col route: full 8,000m system, supplemental oxygen, 12-point technical crampons, ice axe, harness. The Lhotse Face’s steeper ice demands that crampons are 12-point technical — trekking crampons are inadequate for the face sections. Teams combining Lhotse and Everest use the same gear for both peaks with no additional specialised equipment required. See the complete Lhotse gear list for a full breakdown.
South Face
The Hardest Wall in the HimalayaThe Lhotse South Face is broadly regarded as the most technically demanding sustained wall in Himalayan mountaineering. It rises 3,200m from the Western Cwm to the summit in a near-continuous wall of mixed rock, ice, and unconsolidated snow at extreme altitude. The first complete ascent was made by Tomo Cesen in 1990 — a solo ascent that remains disputed — with a confirmed complete ascent by Sergei Bershov and Vladimir Karataev in 1990 as part of the same season. Very few complete ascents have followed.
The South Face’s ~4% success rate is the lowest of any route in this database that receives meaningful annual attempts. It is not appropriate for comparison with the Standard Couloir as a planning exercise for most climbers — it is documented here because any complete Lhotse route reference must include it, and because its character defines what makes the Standard Couloir the correct choice for every team that is not among the world’s elite technical alpinists.
Overview & Character
The South Face demands sustained technical climbing on rock, ice, and mixed terrain across 3,200m of vertical at altitude. No fixed ropes, no established camps, no shared infrastructure beyond base camp. Teams that have attempted it represent the highest tier of technical Himalayan alpinism — including some of the finest mountaineers of the late 20th and early 21st centuries. The face has defeated most of them. Its objective hazards — rock and ice fall from the immense face above, unpredictable weather, and the physical demands of sustained technical climbing at extreme altitude — are qualitatively different from any other route in this database.
For the purposes of this comparison: if you are considering whether the South Face might be appropriate for your expedition, it is not. The self-selection required is so extreme that it resolves itself. Teams that belong on the South Face know it from their prior climbs, not from route comparison pages.
Who Should Choose Each Route
- Prior successful Everest South Col ascent or comparable 8,000m experience is established
- The Lhotse–Everest combination in a single season is your expedition plan
- You want to use the full shared Everest infrastructure for Lhotse’s lower mountain
- Technical ice competence on 40–50 degree terrain is established from prior alpine or 8,000m experience
- Commercial guiding support from Everest-specialist operators is preferred
- A 50–65 day expedition season fits your schedule
- Your prior climbs include multiple extreme-grade Himalayan routes completed in alpine style
- You have specific technical and logistical experience on sustained mixed walls at altitude
- You have a team of comparable technical capability with full expedition self-sufficiency
- You accept a ~4% success rate and its implications explicitly
- This is a lifelong objective, not a progression step
- You have the realistic self-assessment to identify whether you belong in this category
Weather Windows by Route
Both routes share the same pre-monsoon Himalayan weather system and the same May summit window. Full seasonal analysis in the Lhotse season and weather guide and the best time to climb Lhotse guide.
The Standard Couloir’s weather planning is essentially identical to Everest South Col planning — the same Meteoblue and Weather Insights forecasting services, the same jet stream window mechanics, and the same May 10–25 summit window. Teams combining Lhotse and Everest plan a single weather window sequence that serves both peaks, with Lhotse typically attempted before Everest in the same window or in a separate window immediately after.
Permit & Fee Structure
Lhotse permits are issued by Nepal’s NMA separately from Everest permits. Teams combining both peaks require both permits. See the Lhotse cost guide for a full expedition budget breakdown.
| Fee category | Standard Couloir | Lhotse + Everest Combo |
|---|---|---|
| NMA Lhotse permit | $8,000/person | $8,000/person (Lhotse) |
| NMA Everest permit (if combined) | Not applicable | $11,000/person (Everest) |
| Icefall Doctors fee | ~$3,000/team (shared with Everest) | ~$3,000/team (shared) |
| Liaison officer | ~$3,500–$5,000 | ~$3,500–$5,000 (shared) |
| Base camp infrastructure | $8,000–$15,000 | Shared with Everest operatorefficiency gain |
| Sherpa / high-altitude staff | $6,000–$12,000/Sherpa | Shared carries reduce per-summit cost |
| Oxygen (8–10 cylinders) | $4,000–$7,000 | $8,000–$14,000 (both peaks) |
| Guided program (Lhotse only) | $40,000–$75,000 | $65,000–$120,000 (both peaks)best value |
The Lhotse–Everest combination’s cost efficiency is genuine: shared base camp, shared approach logistics, shared Icefall infrastructure, and shared Sherpa carries mean that two 8,000m summits can be achieved for significantly less than two separate expeditions would cost. Most major Everest operators offer combined programs at a meaningful discount to two separate permit costs.
Guided Options Per Route
- Every major NMA-licensed Everest operator also offers Lhotse — the shared infrastructure makes it operationally straightforward
- Guided success rate: ~36% vs independent ~19%
- Guide advantage is primarily Lhotse Face conditions assessment and upper couloir timing
- Combined Lhotse–Everest programs offered by Furtenbach Adventures, RMI, Altitude Junkies, and others
- Lhotse-only programs available but less common than combined offerings
- Typical guided cost: $40,000–$75,000 Lhotse-only; $65,000–$120,000 combined
- No commercial operators offer South Face programs — not appropriate for guided model
- All South Face attempts are self-organized elite expeditions
- Shares base camp with Standard Couloir teams — provides emergency support proximity only
- Independent all-in cost: ~$18,000–$30,000 (permit, base camp, logistics)
- Small number of attempts per decade — not a regular annual route
Our Recommendation by Climber Profile
Lhotse is the only peak in this database whose standard route shares more than half its terrain with another mountain’s standard route. This infrastructure sharing makes it simultaneously more accessible (use Everest’s systems) and more technically demanding above the shared section (the Lhotse Face is steeper than anything on Everest’s South Col route). The 30% success rate accurately captures this character: accessible enough to be a reasonable target for experienced 8,000m climbers, demanding enough that it beats only Kangchenjunga, K2, Annapurna, and Nanga Parbat among standard routes in the database.