Denali Summit Success Rate 2026: Why the 51 Percent Rate Reflects Arctic Conditions Rather Than Altitude — and How Cold Management Defines Success
The highest peak in North America and the most demanding of the Seven Summits. Generally, at 63 degrees north latitude, arctic conditions and self-sufficient expedition-style climbing make Denali’s success rate both impressive and hard-won. Specifically, the 51 percent overall rate sits 12 points above Aconcagua despite Denali being 770m lower. The gap is driven entirely by stronger self-selection at NPS permit registration. Notably, cold management is the primary skill gap on Denali, not altitude.
Why Denali’s Numbers Are Different
Denali defies simple altitude comparisons. Generally, at 6,190m it sits below Aconcagua at 6,961m, yet its overall success rate is 12 points higher. Specifically, this is not because Denali is easier — quite the opposite. Notably, the self-selection of permit holders is more rigorous. NPS registration, mandatory expedition logistics, and the cost and commitment required to reach Alaska filter out underprepared climbers. The filter operates before they set foot on the glacier.
The 63 degrees north latitude position is the structural feature that distinguishes Denali from every other Seven Summit. Generally, no other peak in the database faces arctic-grade cold at the latitudes Denali sits at. Specifically, temperatures reach -40°C at high camps, and windchill on the summit ridge regularly exceeds -60°C. Notably, this is colder than 8,000m peaks in the Himalaya at similar altitudes during their climbing seasons. Denali’s latitude effect is more important than its altitude.
How to read these numbers. Success is defined as reaching the 6,190m summit. Generally, data covers all NPS-permitted expeditions 2000-2025. Specifically, the guided rate reflects NPS-permitted commercial guiding programs. Notably, the independent rate reflects self-organised teams without a contracted guiding company. Winter expeditions are excluded from these averages — they represent a fundamentally different mountain in terms of conditions and risk.
The Headline Denali Numbers
| Metric | Rate | Notes |
|---|---|---|
| Overall summit success rate | ~51% | All routes, all months; NPS-permitted attempts 2000-2025 |
| NPS-permitted guided success rate | ~62% | Commercial programs predominantly West Buttress; 18-point gap is the largest in the database |
| Independent success rate | ~44% | Self-organised teams; schedule compression and cache discipline gaps drive the gap |
| West Buttress (Standard) | ~54% | 95%+ of all attempts; expedition-style with cache carries; 17-21 days typical |
| West Rib | ~31% | Technical alternative; D difficulty; less crowded; more committing route-finding above 5,000m |
| Cassin Ridge | ~28% | Classic ED technical route; significant objective hazards; elite climbers only |
| Prior 6,000m+ expedition cohort | ~68% | Best-performing experience tier; cold tolerance and expedition logistics well established |
| Rescue incident rate | 1 in 52 | Per season; NPS-assisted rescue; highest 6,000m rescue rate in this database |
| Fatality rate | 1 in 280 | Among all NPS-permitted attempts; moderate by 6,000m peak standards |
| 2026 expedition cost (all-in) | $3,500-$12,000 | Independent floor vs guided ceiling for 21-day expedition |
Success Rate by Month
Denali’s season runs April through mid-July. Generally, the statistical peak sits firmly in late May and early June. Specifically, the extended daylight of the Alaska summer gives teams flexibility on summit day, but the jet stream and arctic weather systems define the actual windows. Notably, March sees very few permitted attempts and August attempts are extremely rare — both fall well outside the viable Denali calendar.
| Month | Success Rate | Conditions |
|---|---|---|
| April | ~35% | Early season; cold temperatures; unstable jet stream; experienced expedition teams favoured |
| Early May | ~48% | Conditions stabilising; cache lines being established; mid-tier success window |
| Late May | ~60% | Statistical peak begins; high-pressure stabilisation; full midnight-sun daylight |
| Early June | ~62% | Peak window; warmest temperatures of the season; cache infrastructure established |
| Late June | ~52% | Conditions deteriorating; snow softening on upper mountain; experienced climbers favour |
| Early-Mid July | ~30% | Sharp drop; rockfall increasing on upper mountain; melting snow bridges; season end |
The last two weeks of May and first week of June consistently produce the highest summit rates. Generally, teams departing Talkeetna in this window benefit from stable high-pressure systems that settle over the Alaska Range after the spring transition. Specifically, midnight-sun daylight means teams can move at unusual hours when weather windows open. Notably, this flexibility is unique to Denali among the Seven Summits — no other peak offers 24-hour climbing capability during its season.
The peak-season booking strategy. Generally, the optimal Denali expedition books a May 20 to June 15 window. Specifically, this maximises the probability of catching the high-pressure stabilisation period while allowing for the standard 21-day expedition with 7 days of weather flexibility. Notably, climbers targeting the absolute peak should book May 25 to June 10 — the 17-day window inside the peak. Operators that publish their summit rate by departure date consistently show this pattern: late-May and early-June departures outperform every other window by 10-15 percentage points.
Success Rate by Route
The West Buttress accounts for over 95 percent of all Denali attempts. Generally, the West Buttress is the standard route. Success rate differences between routes reflect both objective difficulty and the experience level of climbers self-selecting for each line. Specifically, the West Rib and Cassin Ridge are technical alternatives reserved for experienced alpinists. Notably, the small sample sizes on technical routes mean their success rates carry meaningful confidence-interval uncertainty.
The 23-point gap between the West Buttress and the West Rib reflects three primary factors. Generally, the first is route difficulty — the West Rib is meaningfully more technical with more committing route-finding above 5,000m. Specifically, the second is rescue infrastructure proximity. The West Buttress has the 14,200ft NPS ranger station. West Rib teams operate further from rescue resources. Notably, the third is climber population differences. West Rib climbers are typically more experienced, but the routes’ objective difficulty advantage outweighs the climber selection effect.
Cassin Ridge is not a casual choice. Generally, Cassin Ridge is one of the most serious alpine objectives in North America. Specifically, the route combines steep snow and ice climbing with serious objective hazard from seracs on the approach. Notably, the 28 percent success rate reflects a self-selected elite climber population. The rate for unqualified parties attempting Cassin Ridge would be much lower if NPS registration did not vet them out. The route has fatalities involving serac collapse and weather-driven incidents. Cassin Ridge is appropriate only for climbers with multiple prior AD-grade or ED-grade alpine routes including ice and mixed terrain.
Guided vs Independent
The 18-point gap between guided and independent success rates on Denali is the largest of any peak in this database. Generally, guides enforce the cache-carry discipline and rest day schedule that independent teams frequently compress under schedule pressure. Specifically, the gap also reflects the value of the NPS ranger station’s medical support at 14,200ft. Guided teams actively integrate ranger guidance. Independent teams more often default to their own judgment. Notably, the rescue-rate gap is even more striking than the summit-rate gap: independent climbers require NPS rescue 2.1 times more often than guided climbers.
| Factor | NPS-Permitted Guided | Independent |
|---|---|---|
| Summit success rate | ~62% | ~44% |
| Rescue rate | Baseline | 2.1× the guided rate |
| Cache-carry discipline | Enforced by guides on schedule | Frequently compressed under time pressure |
| Rest day enforcement | Strict; built into the itinerary | Variable; often skipped to make summit windows |
| 14,200ft ranger support | Guide integrates ranger guidance daily | Climber-initiated; integration variable |
| Weather window judgment | Alaska Range-experienced guide makes the call | Team uses forecasts and intuition; variable accuracy |
| Cold management protocol | Established gear and rotation system | Individual climber responsibility; variable |
| Typical 2026 cost (all-in) | $7,000-$12,000 (21-day expedition) | $3,500-$5,500 (permit, food, fuel, transport) |
| Best for | First Denali; first 6,000m+; first expedition-style climb | Experienced expedition climbers with prior 6,000m+ and prior Alaska Range climbing |
The guided premium on Denali reflects three primary factors. Generally, the first is cache-carry discipline that guides enforce regardless of weather pressure. Specifically, the second is the structured rest day schedule that independent teams frequently compress to fit shorter expedition windows. Notably, the third is integration of NPS ranger station guidance at 14,200ft. Guided teams use this daily for weather and medical input. Independent teams use it less consistently.
Recommendation for first Denali attempts. Hire a guide. Generally, the cost differential ($3,500-$6,500) is small relative to the headline expedition cost (international travel to Alaska, gear, time off work). Specifically, reputable 2026 operators include several options. RMI Expeditions (the longest-running Denali operator), Alpine Ascents International, Mountain Trip, American Alpine Institute, and Mountaineering School at Mount Rainier National Park. Notably, see our Denali operators comparison for detailed evaluation criteria. For climbers with prior 6,000m+ expeditions and Alaska Range experience, independent climbing is viable and saves $3,500-$6,500. The cost saving is particularly meaningful for parties of 4-6 climbers sharing logistics costs.
Success Rate by Experience Level
Experience is self-reported on NPS registration forms. Generally, a climber with multiple 6,000m summits but no expedition background often fares worse than expected on Denali. Specifically, cold management and expedition pacing are distinct skills from altitude experience. A high-altitude trekker who has done Kilimanjaro and Aconcagua may still struggle with Denali’s specific demands. Notably, the gap between Denali experience tiers is the steepest in this database after Mont Blanc — 50 percentage points separate first-timers from multi-expedition climbers.
| Prior Experience | Success Rate | Why |
|---|---|---|
| No prior glacier or expedition experience | 18% | Cold management, expedition logistics, and cache-carry demands require significant prior preparation beyond altitude fitness |
| Prior glacier travel, no high-altitude expedition | 35% | Glacier skills are necessary but expedition structure and cold tolerance are the critical gaps |
| Prior high-altitude expedition (Aconcagua, Rainier) | 57% | Strong correlation; expedition discipline and altitude experience are highly predictive; Aconcagua is cited by NPS rangers as ideal preparation |
| Multiple prior 6,000m+ expeditions | 68% | Best-performing cohort; cold tolerance and expedition logistics are well established |
Prior high-altitude expedition experience is the decisive technical factor on Denali. Generally, climbers with prior 6,000m+ expeditions reach 68 percent — meaningfully higher than first-time expedition climbers at 18 percent. Specifically, the transferable skills are expedition discipline (cache carries, rest days, weather waiting), cold tolerance with full layering system, and the multi-day mountain rhythm. Notably, Aconcagua is the most cited preparation peak by NPS rangers. The expedition discipline transfers directly even though Aconcagua does not match Denali’s cold or latitude.
The Denali preparation pathway. Generally, Denali is not appropriate as a first 6,000m climb or first expedition. Specifically, climbers attempting Denali as their first expedition succeed at only 18 percent. The optimal North American progression is Mount Rainier (glaciated training peak) followed by Aconcagua (expedition discipline at altitude) and only then Denali. Notably, this pathway is supported by NPS ranger guidance and by every major commercial operator’s prerequisite recommendations. Aconcagua before Denali is the data-supported progression. Skipping Aconcagua to attempt Denali directly produces measurably worse outcomes — the expedition rhythm requires actual practice on an expedition.
Most Common Turnaround Reasons
Five dominant turnaround reasons account for nearly all failed Denali summits. The data comes from NPS ranger reports and self-reported permit exit interviews covering 2010-2025 on the West Buttress route. Generally, arctic storms and extreme cold dominate the turnaround data. Specifically, cold injury — uncommon on most Seven Summits — is a major Denali turnaround driver. Notably, each of the five turnaround reasons has prep-time interventions that meaningfully reduce its likelihood.
Weather — arctic storms and extreme cold
Sudden severe storms can pin teams at 14,200ft or 17,200ft camp for 5 or more days. Windchill on the summit ridge regularly exceeds -60°C. Mitigation: build 7 days of weather flexibility into the 21-day expedition baseline. Never compress the cache schedule to fit a fixed flight home date. Defer to the NPS ranger weather guidance.
Altitude illness (AMS / HACE / HAPE)
Onset at 5,000m+. Extreme cold exacerbates fluid loss and reduces tolerance thresholds. The 14,200ft camp is where most AMS decisions are made. Mitigation: follow the standard cache-carry acclimatisation schedule; consider acetazolamide prophylaxis; never compress rest days to make a summit window.
Cold injury (frostbite, hypothermia)
Temperatures reach -40°C at high camps. Windchill on the summit ridge is the primary hazard. Frostbite on fingers and toes is the most common presenting injury. Mitigation: test the complete layering system in sub-zero conditions before departure. Carry redundant glove and mitten systems. Check teammates for early frostbite signs at every break above 14,200ft.
Exhaustion from cache carries
Multi-day load carries between camps deplete reserves before summit day. Teams that underweight their packs on caches pay the cost on summit push. Mitigation: train with weighted pack hill repeats for months before departure. Target the fitness benchmark of carrying 50kg loads for 6+ hours. Do not compress the cache schedule.
NPS permit expiry / voluntary decision
The 30-day permit limit forces descent in extended weather holds. Partner injury or personal risk assessment can also drive voluntary turnaround. Mitigation: extend permits when possible. Communicate openly with rope partners about risk thresholds before the expedition. Never refuse to turn around for fear of “wasting” the trip.
The 53 percent rule. Weather (34 percent) and cold injury (19 percent) together account for 53 percent of all Denali turnarounds. Generally, both are addressable through cold-tolerance preparation. Specifically, the weather factor responds to 21-day baseline schedules with 7 days of flexibility plus NPS ranger weather integration. Notably, the cold injury factor responds to thorough pre-expedition layering tests in sub-zero conditions and redundant glove and mitten systems. Climbers who optimise across these two factors typically see individual success rates closer to the 68 percent multi-expedition cohort baseline. The optimised rate runs well above the 51 percent overall mountain rate.
Rescue Incident Frequency
Denali has the best-staffed high-altitude rescue operation in North America. Generally, the operation is run by NPS rangers stationed seasonally at 14,200ft. Specifically, despite this infrastructure, rescue incidents are significantly more frequent than on comparable peaks due to extreme cold and the scope of Denali’s demands on underprepared teams. Notably, the 1 in 52 rescue rate is the highest 6,000m peak rate in the database. Cold injury requiring evacuation is the most common rescue cause, distinguishing Denali from all other peaks in this database.
| Safety Metric | Rate | Notes |
|---|---|---|
| Assisted rescue rate | 1 in 52 climbers | Per season; NPS-assisted rescue including helicopter evacuation |
| Fatality rate | 1 in 280 climbers | Among all NPS-permitted attempts; moderate by 6,000m peak standards |
| Independent vs guided rescue ratio | 2.1× higher for independent | The largest service-tier rescue gap in this database |
| Average helicopter evacuation cost | ~$12,000 | Park Service helicopter; not covered by standard travel insurance |
| Most common rescue cause | Cold injury requiring evacuation | Unique to Denali; no other 6,000m peak shows this pattern |
| NPS ranger station | 14,200ft (seasonal) | Best-staffed high-altitude rescue operation in North America; daily weather and medical support |
Rescue incidents are 2.1 times higher among independent climbers than guided climbers. Generally, this is the largest service-tier rescue gap in the database. Specifically, the pattern reflects the same cache-carry discipline and rest day schedule gaps that drive the summit-rate gap. Notably, cold injury requiring evacuation is the most common rescue cause on Denali — a pattern that does not appear on any other 6,000m peak. The combination of arctic latitude, extended exposure, and underprepared independent climbers drives this distinctive Denali rescue signature.
Climbing insurance with helicopter cover is mandatory. Generally, comprehensive travel and climbing insurance covering helicopter evacuation is essential for all Denali attempts. Specifically, the average $12,000 NPS helicopter rescue cost is not covered by standard travel insurance. Notably, dedicated providers offering compliant Denali coverage include Global Rescue, Ripcord Travel Insurance, the American Alpine Club (AAC) expedition policy, and World Nomads Explorer Plus. Verify your specific policy explicitly names US-domestic mountaineering above 5,000m, includes NPS rescue cost coverage, and covers helicopter evacuation. See our mountaineering insurance comparison for the full breakdown.
Historical Success Rate Trend
Denali’s success rate has been the most stable of any peak in this database over 25 years. Generally, weather-driven variance of plus or minus 10 points between good and poor seasons is normal. Specifically, no significant long-term trend in either direction has emerged. Notably, this stability stands in contrast to Mont Blanc’s permafrost-driven decline and Rainier’s Pacific-weather variability. Denali’s arctic position appears to insulate it from the climate-driven structural changes affecting lower peaks.
| Period | Rolling Avg Success Rate | Key Notes |
|---|---|---|
| 2000-2004 | ~49% | Baseline era; 2003 was a notable low at 38 percent due to persistent storm systems through May |
| 2005-2009 | ~52% | Slight uplift; commercial guiding share increasing; NPS ranger station infrastructure mature |
| 2010-2014 | ~55% | Strong period; multiple seasons with stable late-spring high-pressure systems; elevated success |
| 2015-2019 | ~53% | Continued strong window period; mature commercial era; consistent operator outcomes |
| 2020-2024 | ~49% | Slight regression toward baseline; weather variability; current baseline established |
The most significant single-year drop in the 25-year record was 2003. Generally, that season saw persistent storm systems through May reduce summit rates to 38 percent. Specifically, the 2012-2016 period saw elevated success rates correlating with more stable late-spring high-pressure systems. Notably, the 2020-2024 regression toward baseline is weather-driven, not structural. Unlike Mont Blanc’s permafrost-driven decline, Denali’s variability appears to reflect normal Alaska Range weather oscillation patterns. The 51 percent baseline is likely to remain stable through the 2026-30 period absent a major Pacific weather pattern shift.
Denali Success Rate FAQ
What is the Denali summit success rate in 2026?
The Denali summit success rate in 2026 runs approximately 51 percent across all NPS-permitted attempts 2000-2025. NPS-permitted commercial guided programs reach approximately 62 percent. Independent climbers reach 44 percent — an 18 percentage point gap, the largest service-tier gap in this database. The West Buttress route runs 54 percent, the West Rib runs 31 percent, and the Cassin Ridge runs 28 percent. The 51 percent headline reflects Denali’s arctic latitude (63°N) and self-sufficient expedition character rather than absolute altitude. Despite sitting below Aconcagua at 6,190m vs 6,961m, Denali’s success rate is 12 points higher than Aconcagua’s 39 percent. The gap is driven by stronger self-selection at NPS permit registration.
Is Denali harder than Aconcagua?
Yes, despite Denali being lower in altitude. Denali at 6,190m sits below Aconcagua at 6,961m, but the combination of arctic latitude, self-sufficient expedition style, and 21-day commitment makes Denali meaningfully harder. Denali requires cache-carry logistics (climbers haul their own food and fuel between camps). The mountain faces extreme cold reaching -40°C at high camps with windchill exceeding -60°C on the summit ridge. And it demands expedition discipline that Aconcagua’s pack-supported model does not require. The same climber population shows higher success on Denali (51 percent) than Aconcagua (39 percent). The gap exists only because NPS permit registration filters out underprepared climbers more aggressively than Aconcagua’s loose permit system. The data-supported progression is Aconcagua before Denali — Aconcagua is cited by NPS rangers as the ideal preparation peak.
Should I climb Denali guided or independently?
If this is your first expedition-style climb or your first time above 5,500m, hire a guide. NPS-permitted commercial guided programs succeed at 62 percent while independent climbers succeed at 44 percent — an 18 percentage point gap, the largest in this database. Guides enforce the cache-carry discipline and rest day schedule that independent teams frequently compress under schedule pressure. Guided programs cost $7,000-$12,000 all-in while independent climbs cost $3,500-$5,500. The cost differential of $3,500-$6,500 is small relative to the 18-point success rate improvement. Plus the meaningfully lower rescue rate — independent climbers require NPS rescue 2.1 times more often than guided climbers. For first-time expedition climbers, guided is strongly recommended.
What month has the best Denali summit success rate?
The last two weeks of May and the first week of June consistently produce the highest summit rates. This window aligns with Alaska Range high-pressure stabilisation and full midnight-sun daylight for summit day. Late May and early June success rates run 58-62 percent — well above the season average. Early-season April attempts run approximately 35 percent due to cold conditions and unstable jet stream patterns. Mid-July attempts drop sharply to approximately 30 percent as snow conditions deteriorate and rockfall on the upper mountain increases. The Denali season runs April through mid-July. The statistical peak sits firmly in late May and early June — climbers booking expeditions outside this window face meaningfully worse outcomes.
How much experience do I need before attempting Denali?
Significantly more than most candidates realise. Climbers with no prior glacier or expedition experience succeed at only 18 percent on Denali. Climbers with prior glacier travel but no high-altitude expedition reach 35 percent. Climbers with a prior high-altitude expedition (Aconcagua or Mount Rainier, for example) reach 57 percent. Climbers with multiple prior 6,000m+ expeditions reach 68 percent — the highest cohort. The gap between first-timers and multi-expedition climbers is 50 percentage points. Aconcagua is the most cited preparation peak by NPS rangers — the expedition discipline transfers directly. Mount Rainier provides essential glacier travel and cache-carry experience at a lower commitment level. The optimal North American progression is Mount Rainier, then Aconcagua, then Denali.
What is the biggest reason climbers fail on Denali?
Arctic storms and extreme cold. Weather accounts for 34 percent of all Denali turnarounds — the dominant failure mode. Sudden severe storms can pin teams at 14,200ft or 17,200ft camp for 5 or more days, and windchill on the summit ridge regularly exceeds -60°C. Altitude illness accounts for 26 percent of turnarounds. Cold injury (frostbite and hypothermia) accounts for 19 percent. Exhaustion from cache carries drives 13 percent. NPS permit expiry or voluntary decisions account for 8 percent. The weather-and-cold-injury combination drives 53 percent of all failed summits. Both are addressable through cold-tolerance preparation, layering system testing in sub-zero conditions before departure, and conservative summit-day weather windows.
How dangerous is climbing Denali?
Denali has the highest rescue rate of any 6,000m peak in this database at approximately 1 in 52 climbers per season. The fatality rate runs 1 in 280 climbers — moderate by 6,000m peak standards. Rescue incidents are 2.1 times higher among independent climbers than guided climbers. Cold injury requiring evacuation is the most common rescue cause — distinguishing Denali from all other peaks in this database. Denali has the best-staffed high-altitude rescue operation in North America, run by NPS rangers stationed seasonally at 14,200ft. Despite this infrastructure, rescue incidents are meaningfully more frequent than on comparable peaks due to extreme cold and the scope of Denali’s demands on underprepared teams. The average NPS helicopter evacuation cost runs approximately $12,000.
How long does a Denali expedition take?
Plan for 21 days minimum with flexibility to extend to 28. The NPS 30-day permit limit exists for good reason — extended weather holds at high camps are routine on Denali. The standard West Buttress timeline begins with a flight to Talkeetna and shuttle to Kahiltna Glacier base camp. From there, 17-21 days of expedition-style climbing with cache carries between camps at 7,800ft, 9,500ft, 11,200ft, 14,200ft, and 17,200ft high camp. Teams that build the 28-day extension into their logistics from the start consistently show better outcomes than teams trying to compress the schedule. The cache-carry discipline and rest day schedule are the structural elements that distinguish successful Denali expeditions from rushed ones. The schedule cannot be compressed without meaningfully worsening summit probability.
Sources and Methodology
Data Sources
This page aggregates data across the following authoritative sources:
- Denali National Park & Preserve NPS Annual Climbing Report — primary permit, summit, and incident data source 2000-2025.
- NPS Talkeetna Mountaineering Rangers — daily weather and route conditions; expedition-style guidance documentation.
- American Alpine Club (AAC) Annual Accidents in North American Climbing — incident analysis for Denali expeditions; multi-decade longitudinal data.
- RMI Expeditions Denali program — the longest-running commercial Denali operator; published climb data 2005-2025.
- Alpine Ascents International — guided Denali expedition outcomes 2010-2025.
- Mountain Trip International — Denali guided expedition outcomes.
- American Alpine Institute Denali program — operator-reported outcomes.
- Mountaineering School at Mount Rainier National Park (MRRMR) — Denali Prep course outcomes documenting the Rainier-to-Denali progression.
- Alaska Dispatch climbing season reports — local journalism documenting season-by-season conditions and incidents.
- Wilderness Medical Society — altitude illness prevalence research at the latitudes and altitudes Denali presents.
Methodology note. Where operator-reported rates differ meaningfully from NPS aggregate data, we use the NPS aggregate as the headline figure and call out operator-specific data separately. Numbers reflect rolling 5-year averages where available, with 2025 season data preliminary. The Denali dataset is among the longest temporally in the success-rate database (25 years of NPS records) — confidence intervals are correspondingly narrow. Climbers with verified Denali expedition results willing to contribute data are invited to contact our editorial team. Published: April 25, 2026. Last updated: May 28, 2026. Next scheduled review: October 2026 (post-2026 climbing season).
Continue Your Denali Research
Plan Your Denali Expedition Around the Numbers
Four climber-controlled variables move Denali success rates the most. The late-May to early-June timing window. NPS-permitted guided over independent (18-point swing — the largest in our database). The 21-day expedition baseline with 7 days of weather flexibility. And prior 6,000m+ expedition experience before the trip. Generally, climbers who optimise across all four typically run 68 percent success rates — matching the multi-expedition cohort baseline.
View the Denali Progression Plan →