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Last updated September 21, 2026

Denali reflected in Wonder Lake on the north side of Denali National Park
Denali · July 1967 · Muldrow Glacier / Karstens Ridge

Denali 1967 Disaster: The Wilcox Expedition

In July 1967, twelve climbers from two combined parties climbed Denali by the historic Muldrow Glacier–Karstens Ridge route. Five came down from high camp before a violent storm locked onto the upper mountain. Seven remained above. Six made a second summit push in whiteout conditions while Steve Taylor stayed at the 17,900-foot camp. None of the seven returned. The disaster remains the deadliest single climbing accident in Denali’s history.

July 17–24, 19677 climbers killed5 expedition survivorsDenali’s deadliest single climbing disaster
Direct answer

What happened to the Wilcox Expedition on Denali in 1967?

A twelve-man combined expedition climbed Denali from the north by the Muldrow Glacier and Karstens Ridge. Four climbers—Joe Wilcox, Howard Snyder, Jerry Lewis and Paul Schlichter—summited in good weather on July 15. On July 17, those four plus Anshel Schiff descended from the 17,900-foot high camp to 15,000 feet to conserve food and fuel. Six of the seven men left above made a second summit attempt; Steve Taylor remained at camp because he was ill. The summit party radioed on July 18 from high on the mountain in whiteout conditions. A prolonged, exceptionally violent storm then engulfed the upper mountain. All seven men above the lower survivors died.

The disaster in four facts

Seven Deaths on a Route Where Rescue Was Nearly Impossible

The event predates Denali’s modern West Buttress infrastructure, high-altitude ranger camps, satellite communication and helicopter capability.

Fatalities7All seven members who remained above the five survivors.
High camp17,900 ftOn the Harper Glacier above Karstens Ridge.
Last radio18 JulThe second summit group reported from the upper mountain in whiteout.
Storm durationDaysThe violent storm persisted with only minor lulls for roughly a week.
Historic north-side route

The Wilcox Expedition Climbed the Muldrow Glacier–Karstens Ridge Route

The route used Denali’s original north-side approach: from Wonder Lake and the McKinley River toward McGonagall Pass, then up the Muldrow Glacier, Karstens Ridge and Harper Glacier to Denali Pass and the South Summit. It is not the modern standard West Buttress route.

1967 route landmarks

This is broad historical orientation rather than an exact reconstruction of every 1967 camp.

Wonder LakeNorth-side access point used in the historic overland approach.
McGonagall PassGateway from the tundra onto the Muldrow Glacier system.
Muldrow GlacierThe long north-side glacier that led toward Karstens Ridge.
Harper Glacier · ~15,000–17,900 ftThe expedition’s upper camps and staging area.
Denali Pass / Archdeacon’s TowerThe upper ridge where the second summit party was last known and where two bodies were later found.
Historical USGS photograph of the Muldrow Glacier in 1957
The expedition approached from the north

The Muldrow Route Was Remote Even Before the Climbing Began

Unlike today’s ski-plane access to the Kahiltna Glacier, the historic Muldrow expedition required an overland approach from the north and a long journey through the glacier system before reaching the upper mountain.

Photo: Austin Post / USGS, public domain. Taken in 1957, not during the Wilcox expedition.
Two groups became one expedition

The Wilcox Party and the Colorado Party Combined

The twelve climbers did not begin as a single cohesive team. Joe Wilcox’s group joined with a three-man Colorado party led by Howard Snyder. The 1968 American Alpine Club accident analysis later described the combined party as relatively inexperienced for an expedition of this scale.

Wilcox group

Nine climbers

Joe Wilcox, Jerry Clark, Hank Janes, Dennis Luchterhand, Mark McLaughlin, John Russell, Anshel Schiff, Steve Taylor and Walter Taylor.

Seven of these nine would die.
Colorado group

Three climbers

Howard Snyder, Jerry Lewis and Paul Schlichter joined the larger expedition when their own team fell below the required party size.

All three survived and summited on July 15.
Combined total

12 climbers

The team shared the Muldrow/Karstens route, camps, radios, food and summit strategy.

Five survived; seven died high on Denali.
July 15, 1967

The First Summit Party Climbed in Excellent Weather

Joe Wilcox, Howard Snyder, Jerry Lewis and Paul Schlichter left the 17,900-foot camp around noon on July 15. The detailed 1968 accident report says they reached the South Summit at approximately 6:30 p.m. in clear conditions and returned to high camp around 9:50 p.m.

The contrast with the second summit push is central to the disaster. The first group had visibility and relatively favorable weather. The second group would spend a night out, reach the upper mountain in cloud and begin descending into a storm that became far more violent.

Four July 15 summiteers survived.

Wilcox, Snyder, Lewis and Schlichter later descended to 15,000 feet. Anshel Schiff, who had not summited, descended with them. Those five became the expedition’s survivors.

Denali and the Alaska Range in Denali National Park
NPS photo / Jacob W. Frank, public domain. Modern landscape image.
July 16–18, 1967

The Final Summit Push Began After a Storm Had Already Tested the Team

The 1968 American Alpine Club accident report provides the most detailed contemporaneous sequence, although later books disagree over how some decisions should be interpreted.

Strong winds trapped all twelve at high camp

After the first summit party returned, winds around the upper mountain kept the entire team at the 17,900-foot camp.

Five descended to 15,000 feet

Wilcox, Snyder, Schlichter, Schiff and Lewis left high camp to conserve food and fuel. Seven men remained above.

Six started for the summit

Jerry Clark, Hank Janes, Dennis Luchterhand, Mark McLaughlin, John Russell and Walter Taylor departed. Steve Taylor stayed at the 17,900-foot camp because he felt ill.

The summit party radioed from cloud

They reported poor visibility, difficulty locating the trail and a decision to bivouac on the upper mountain rather than return immediately to high camp.

Final radio contact from the upper mountain

The AAC record says the six-man party reported reaching the South Summit in dense overcast and preparing to descend. Other reconstructions suggest John Russell may have turned back before the top. With no survivors from the group, his exact high point remains uncertain.

The storm intensified

No further radio message came from the seven men above. The storm continued with only brief lulls for days.

Why sources disagree about whether five or six reached the summit

The 1968 AAC climb summary says all six radioed from the summit. Later reconstructions based on radio details argue that five may have reached the top while Russell had turned back. Because none of the six survived, this page treats Russell’s exact high point as unresolved.

Denali before sunrise viewed from Wonder Lake
The last known movement happened in cloud

Above 19,000 Feet, Visibility Can Become a Survival System

The second summit party had to locate a high camp across exposed upper terrain in whiteout and extreme wind after a long summit effort. On Denali, route finding and shelter can become inseparable once weather closes in.

Photo: NPS / Mary Lewandowski, public domain. Modern image, not the 1967 storm.
Seven climbers killed

The Men Lost in the 1967 Wilcox Expedition

The names and ages below follow the 1968 American Alpine Club accident report and NPS historical fatality records. Older publications contain occasional spelling errors, especially “Luchterland” for Luchterhand and “Hank James” for Henry Janes.

F. Jerry Clark · 31Second summit group; led the upper party’s radio communications.
Henry “Hank” Janes · 25Second summit group.
Dennis Luchterhand · 24Second summit group.
Mark McLaughlin · 23Second summit group.
John Russell · 23Second summit group; exact summit status remains uncertain.
Walter “Walt” Taylor · 24Second summit group.
Steve Taylor · 22Stayed at the 17,900-foot camp because he was ill.

Only three bodies were ever located—and none was positively identified.

The Mountaineering Club of Alaska search party found one body at the destroyed high camp and two near Archdeacon’s Tower. The conditions prevented positive identification. The other four climbers were never found.

Five men came down alive

The Survivors Were Below the Fatal Group When the Storm Locked In

The five survivors had descended to roughly 15,000 feet before the upper mountain became impassable. They were still trapped by the storm and suffered exhaustion and frostbite, but their lower position gave them a margin the seven above did not have.

Survivor

Joseph F. Wilcox

Expedition leader and July 15 summiteer.

Later wrote White Winds and disputed parts of the early accident narrative.
Survivor

Howard H. Snyder

Colorado party leader and July 15 summiteer.

Later wrote The Hall of the Mountain King.
Survivor

Paul Schlichter

Colorado climber and July 15 summiteer.

His later interviews helped reconstruct the expedition.
Survivor

Jerry Lewis

Colorado climber and July 15 summiteer.

Descended with the lower group on July 17.
Survivor

Anshel Schiff

Wilcox-party member who did not summit.

Descending before the storm became decisive.
Shared fact

Position mattered

The five survivors were not safe because the storm was mild below. They survived because they had more shelter, supplies and route margin at lower elevation.

The seven above had almost none.
The physical event

How Severe Was the 1967 Denali Storm?

The answer depends on what is directly documented versus what was reconstructed later. The safest historical description is that an exceptionally violent storm struck the upper mountain and persisted with minor lulls for several days.

EvidenceWhat it supportsWhat it does not prove
1968 AAC / NPS recordA violent, prolonged storm trapped the upper party during descent.An exact wind speed at Archdeacon’s Tower or high camp.
Survivors at 15,000 ftSevere wind and weather continued for days even well below the summit.That conditions at 15,000 ft matched conditions near 20,000 ft.
Later meteorological reconstructionUpper-mountain winds may have reached extraordinary values, with modern articles citing modeled gusts well above 100 mph.That a 300 mph number was a direct instrument measurement on the summit ridge.
Search evidenceTents were destroyed, bodies were found exposed or bivouacked, and fresh snow quickly buried the scene.The exact sequence of each climber’s final movements.
Why the disaster remains controversial

There Is No Responsible Historical Basis for Reducing 1967 to One Person’s Mistake

The early accident analysis, survivor books and later historical reviews disagree over warning, leadership and responsibility. What they share is a picture of multiple vulnerabilities converging with an extreme storm.

1968 accident analysis

Multiple contributing factors

The AAC analysis described a large, inexperienced combined party, exhaustion, poor condition among some upper climbers, supply pressure and the fatal group’s decision to bivouac rather than descend when cloud enveloped them.

It explicitly called the tragedy complex, with no single simple cause.
Storm-warning dispute

Did the team receive advance warning?

The 1968 analysis said a Park Service radio report warned of a major storm around July 16–17. Wilcox later published radio-log documentation disputing that claim.

The AAC review of White Winds said the logs did not show an advance storm alert.
Leadership debate

Wilcox received heavy criticism

Contemporary criticism focused on his youth, expedition organization and decision to descend while weaker climbers remained high. Later accounts challenged the idea that he alone caused the disaster.

The evidence supports analysis, not a courtroom-style verdict.
Upper party agency

The fatal group made its own summit decisions

The 1968 accident analysis emphasized that the group above chose to continue and bivouac in deteriorating conditions after the five survivors had descended.

Leadership and individual decisions overlapped.
Weather

An extraordinary storm changed the outcome

The same 1968 analysis said the outcome might have been very different had the storm not struck when it did.

A hazardous decision is not the same thing as a guaranteed fatality.
Historical uncertainty

No witness saw the final hours

The seven climbers who died left no complete record after the last radio contact.

Every reconstruction contains inference.
USGS photograph of the Muldrow Glacier in 1970
The historic route preserved few clues

Fresh Snow Buried the Evidence Before a Full Reconstruction Was Possible

Searchers reached the high mountain days after the last radio call. By the August follow-up search, new snow had covered camps, tracks and remains that might have answered more questions.

Photo: USGS historical Muldrow Glacier image, September 1970, public domain. Not the disaster scene.
A systems failure, not a single-cause story

What Contributed to the Wilcox Expedition Disaster?

The historical sources support several interacting factors. They do not support a clean equation in which removing one factor guarantees survival.

FactorHistorical evidenceWhy it mattered
Extreme stormAll major records describe a violent multi-day storm on the upper mountain.Destroyed shelter, erased visibility, slowed movement and made outside rescue unrealistic.
Late summit departureThe second group had not left high camp by about 2 p.m. on July 17.Committed the climbers to an overnight bivouac or very late return at extreme altitude.
Fatigue / illnessSeveral climbers had been exhausted, short of sleep, ill or affected by altitude before the second push.Reduced pace and margin once weather deteriorated.
Food and fuel pressureFive climbers descended partly to conserve limited supplies at high camp.High camp had less redundancy than a modern heavily stocked expedition camp.
Whiteout navigationThe summit party radioed that it was having difficulty locating the trail.Finding the route and high camp became harder precisely when shelter mattered most.
Communication limitsSmall radios worked inconsistently and rescue capability was minimal by modern standards.The lower party could not guide or rescue the upper group once contact ended.
ExperienceThe 1968 analysis judged the party’s overall experience low for a major Denali expedition.Extreme conditions leave less room for learning expedition judgment on the mountain.
Denali partly obscured by heavy cloud and snow
The modern lesson is margin

Weather Forecasting Improved. Denali Did Not Become Predictable.

Modern teams have better forecasts, satellite communication and rescue systems, but the National Park Service still emphasizes self-sufficiency because wind, visibility, altitude and terrain can make timely rescue impossible.

Photo: NPS / Mary Lewandowski, public domain. Modern image.
The same historic route is now rarely used

What Is the Muldrow Glacier Route Like Today?

More than 90% of modern Denali climbers use the West Buttress. The Muldrow Glacier remains historically important, but its lower glacier surged dramatically in 2021 and changed the route.

2021

The glacier surged

The lower Muldrow fractured heavily, making the historic north-side line far more complex.

NPS initially described large sections as apparently impassable.
May 2026

Rangers returned to scout it

An NPS patrol reached the base of the Hill of Cracks and reported that the route “may” go with difficult bypasses and overhead hazard.

No climbing team had used the historic route since 2019.
Planning now

Conditions remain evolving

The current NPS FAQ still advises teams to do extensive research and notes major logistical complications on the north side.

Do not use a 1967 route description for a modern attempt.
Sunrise alpenglow on Denali from north of Wonder Lake
One event inside a century of data

The 1967 Disaster Still Occupies an Outsized Place in Denali’s Fatality Record

Seven deaths in one expedition are dramatic, but they should not be converted into a modern personal probability. Denali’s route traffic, rescue systems, registration rules and climber population have changed substantially since 1967.

Photo: NPS / Mary Lewandowski, public domain.
Denali death-rate context

How Much Does 1967 Matter in the Long-Term Record?

The peer-reviewed Denali fatality study examined 96 deaths from 1903 through 2006 and calculated 3.08 deaths per 1,000 summit attempts. The seven Wilcox-expedition deaths account for about 7.3% of those 96 fatalities—but that does not mean 7.3% of Denali’s modern risk comes from storms.

Study fatalities961903 through 2006 in McIntosh et al.
Historic rate3.08 / 1,000Summit attempts in the study population.
1967 deaths7One expedition and one extreme weather event.
Share of study deaths7.3%Seven divided by 96 historical fatalities—not an individual risk estimate.

The more important modern finding is that Denali fatalities are concentrated on descent.

The peer-reviewed study found that 61% of fatalities occurred during descent. The 1967 disaster is historically consistent with that broader pattern: the fatal summit party’s final known movement was downward from the upper mountain.

Denali 1967 disaster FAQ

Direct Answers About the Wilcox Expedition

Where the sources disagree, the answer preserves that uncertainty rather than forcing one reconstruction.

How many climbers died in the 1967 Denali disaster?

Seven climbers died: Jerry Clark, Hank Janes, Dennis Luchterhand, Mark McLaughlin, John Russell, Walter Taylor and Steve Taylor.

Who survived the Wilcox Expedition?

Five men survived: Joe Wilcox, Howard Snyder, Paul Schlichter, Jerry Lewis and Anshel Schiff. Wilcox, Snyder, Schlichter and Lewis had summited on July 15; Schiff had not.

What route did the Wilcox Expedition climb?

The combined expedition climbed from the north via the Muldrow Glacier and Karstens Ridge, continuing up the Harper Glacier toward Denali Pass and the South Summit.

Did all six members of the second summit party reach the top?

The 1968 American Alpine Club climb summary says the six-man party radioed from the summit. Later reconstructions suggest five may have summited while John Russell turned back. Because no member of that group survived, Russell’s exact high point remains uncertain.

How bad was the 1967 Denali storm?

Contemporary records describe an incredibly violent storm that lasted for days. Later meteorological modeling has produced very high wind estimates, but exact summit-ridge wind speeds were not directly measured in 1967.

Was Joe Wilcox blamed for the disaster?

Wilcox received substantial criticism after the accident, especially over leadership, experience and weather decisions. The 1968 accident analysis, however, called the event complex and said no single simple cause explained it. Wilcox later disputed the claim that the expedition had received a clear advance warning of the fatal storm.

Were the seven bodies recovered?

No. Searchers found three bodies but could not positively identify or remove them. Four climbers were never located, and later snow buried the sites.

Is the Muldrow Glacier route still climbed?

It is historically important but rarely used today. The 2021 Muldrow Glacier surge dramatically changed the lower route. A 2026 NPS patrol reported that portions may be navigable with difficult bypasses and overhead hazard, while NPS continues to advise extensive research before any attempt.

The Denali 1967 lesson

The Storm Was Real. So Were the Decisions That Put Seven Climbers in Its Path.

The Wilcox Expedition should not be remembered as a morality play with one villain or one mistake. A late summit effort, exhausted climbers, limited supplies, whiteout navigation, uncertain forecasting, weak communication and an exceptional storm converged on an upper mountain where rescue was effectively impossible. Seven men died. Five survived below them. Nearly sixty years later, the unanswered questions are part of the history—but so is the clarity of the larger lesson: on Denali, margin is a survival system.

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