The 1956 Japanese archival postal stamp commemorating the first ascent of Manaslu by Gyalzen Norbu and Toshio Imanishi.
NepalFirst Ascender of Makalu (8,485m)First Ascender of Manaslu (8,163m)Only Person to Make First Ascents of Two 8,000m PeaksSherpa Sirdar & Himalayan LegendTiger of the Snows

Gyalzen Norbu

Gyalzen Norbu was an extraordinary Nepalese Sherpa climber and Sirdar who holds a unique record in mountaineering history: he is the only person to achieve the maiden first ascents of two 8,000-meter peaks, summiting Makalu on May 16, 1955, and Manaslu on May 9, 1956.

🏔️
Summits Conquered
2 Peaks
🚩
Expeditions
2 Documented
🧗
Pioneer Routes
2 Established
📖
Chronicles
2 Stories
Editorially Verified
Historical Reference Record

Mountain Safety & Conditions Disclaimer: High-altitude climbing, glacial travel, and technical ascents entail severe objective risks including avalanches, serac collapses, rapid weather collapse, and altitude illness. Historical route descriptions and summit claims on Mountanity reflect documented archival sources and must not be used as live operational safety assessments. Local regulations, permits, and physical glacial topography change continuously.

Peer Review: Senior Editorial Board & Historical Reviewers • Editorial Standards

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Biographical Record & Archival Chronicle

Gyalzen Norbu was born around 1918 in the high valleys of the Solukhumbu district in eastern Nepal. Endowed with immense physical stamina, unshakeable courage, and sharp tactical leadership, Gyalzen established himself in the post-World War II era as one of the most elite and sought-after Sherpa Sirdars in the Greater Ranges. His intimate understanding of Himalayan ice and weather patterns earned him profound respect from European, Asian, and American expedition leaders alike.

In the spring of 1955, Gyalzen Norbu served as Sirdar for the French Makalu Expedition led by Jean Franco. Guiding the heavy supply trains across the Barun wilderness and up the treacherous Makalu La icefall, Gyalzen ensured flawless logistical support for the team. On May 16, 1955—the day after Lionel Terray and Jean Couzy claimed the summit—Gyalzen joined the second summit wave alongside Jean Bouvier and Serge Coupé, becoming one of the first human beings to stand atop the 8,485-meter apex of Makalu.

Just one year later, in the spring of 1956, Gyalzen took on the Sirdarship for the third Japanese Manaslu Expedition under Aritsune Maki. His diplomatic poise was crucial in bridging cultural divides with the frightened villagers of Sama Gompa, who feared mountain deities. On May 9, 1956, partnered with Japanese climber Toshio Imanishi, Gyalzen Norbu led the final assault up the Northeast Face, conquering the exposed knife-edge summit crest of Manaslu at 8,163 meters. With this triumph, Gyalzen achieved what no other mountaineer in human history has ever matched: he became the first ascender of two virgin eight-thousanders on their maiden climbs.

Gyalzen continued to guide international expeditions on the frontiers of high-altitude exploration until his tragic death in an avalanche on an expedition in 1961. Decorated with the prestigious Tiger of the Snows distinction by the Himalayan Club, Gyalzen Norbu stands immortalized as a foundational colossus of Himalayan mountaineering heritage.

Notable Milestones & Ascents

  • Only mountaineer in human history to make the maiden first ascent of two 8,000-meter peaks (Makalu in 1955 & Manaslu in 1956)
  • First ascent of Manaslu (8,163m) on May 9, 1956, alongside Toshio Imanishi (First Assault Team)
  • First ascent wave on Makalu (8,485m) on May 16, 1955, alongside Jean Bouvier and Serge Coupé
  • Served as Sirdar on the historic French Makalu (1955) and Japanese Manaslu (1956) expeditions
  • Awarded the prestigious Tiger of the Snows by the Himalayan Club for supreme high-altitude leadership
Verified Topographic Data

Key Statistics & Topographic Figures

Maiden 8000m Ascents
2 Peaks (Makalu 1955 & Manaslu 1956)

Only Climber in World History

Makalu Summit Date
May 16, 1955

Second Summit Wave (8,485m)

Manaslu Summit Date
May 9, 1956

First Summit Pair (8,163m)

Himalayan Honor
Tiger of the Snows

Elite Sherpa Distinction

Historical Evidence & First-Hand Accounts

Archival Primary Source Quotations

“For a Sherpa, the mountains are not enemies to be fought; they are holy giants to be loved with courage and care.”

— Gyalzen Norbu (1956)Source: Himalayan Club Archive
Domain Glossary & Definitions

Defined Alpine Terminology & Concepts

Maiden First Ascent
The first time human beings set foot upon the summit of an unclimbed, virgin mountain peak.
Tiger of the Snows
A revered distinction conferred by the Himalayan Club upon elite Sherpas demonstrating extraordinary valor and leadership above 7,000 meters.
Citability & Knowledge Retrieval

Frequently Asked Questions: Gyalzen Norbu

What unique world record does Gyalzen Norbu hold in mountaineering?

Nepalese Sherpa Sirdar Gyalzen Norbu is the only human being in history to achieve the maiden first ascents of two 8,000-meter peaks: Makalu on May 16, 1955, and Manaslu on May 9, 1956.

How did Gyalzen Norbu summit Makalu in 1955?

Serving as Sirdar for the French expedition, Gyalzen Norbu joined the second summit wave on May 16, 1955, climbing with Jean Franco and Guido Magnone to the 8,485-meter apex.

How did Gyalzen Norbu summit Manaslu in 1956?

As Sirdar and lead assault climber for the Japanese expedition, Gyalzen Norbu partnered with Toshio Imanishi on May 9, 1956, making the historic first ascent of the Mountain of the Spirit (8,163m).

What honors did Gyalzen Norbu receive for his climbs?

He was awarded the prestigious Tiger of the Snows badge by the Himalayan Club, revered as one of the finest high-altitude guides Nepal ever produced.

Associated Summits (2)

The stark granite pyramid of Makalu towering under clear Himalayan skies.
🚩 3 Expeditions
8,485 m
First Ascent: May 15, 1955🧗 1 Route

Makalu

Makalu, at 8,485 meters (27,838 ft), is the fifth-highest mountain on Earth, located 19 km southeast of Mount Everest. An isolated four-sided granite pyramid, it is known for technical knife-edge ridges, severe exposure, and punishing weather, making it one of the most challenging eight-thousanders.

Explore Peak & Routes
The soaring crest of Manaslu glowing in early morning sunrise light.
🚩 4 Expeditions
8,163 m
First Ascent: May 9, 1956🧗 1 Route

Manaslu

Manaslu, at 8,163 meters (26,781 ft), is the eighth-highest mountain in the world, situated in the Mansiri Himal of west-central Nepal. Known as the 'Mountain of the Spirit', its long ridges and valley glaciers offer dramatic topography culminating in a delicate, exposed knife-edge summit crest.

Explore Peak & Routes

Pioneered & Associated Routes (2)

Makalu Northwest Ridge (French Route) climbing route
🧗Standard / Normal Route
Alpine VI, UIAA IV rock, 60° hard ice
+3,685 m

Makalu Northwest Ridge (French Route)

The Northwest Ridge is the classic pioneering line on Makalu, first opened by the historic French expedition of 1955. From Advanced Base Camp on the Chago Glacier, climbers ascend steep snow and ice fields to gain Makalu La (7,400m), a high, wind-blasted col connecting Makalu to Kangchungtse. Above Makalu La, the route climbs through the technical French Couloir—a mixed corridor of steep ice and broken granite—before emerging onto the exposed summit crest.

Difficulty: Extremely Demanding / Grade VI, TD
Prime Window: Late April to Late May
Known Hazards: 4 major objective risks noted
View Detailed Topography
Manaslu Northeast Face (Normal Route) climbing route
🧗Standard / Normal Route
Alpine IV, 40°-50° snow slopes, exposed knife-edge crest
+3,363 m

Manaslu Northeast Face (Normal Route)

The Northeast Face is the standard route on Manaslu, first forged in 1956 by a Japanese expedition. Ascending from the Manaslu Glacier above the village of Samagaon, the route climbs through an active, heavily crevassed icefall between Camps 1 and 2, traverses wide snow plateaus up to Camp 4, and culminates in a delicate, exposed knife-edge snow arête leading to the true summit pin.

Difficulty: Demanding / Grade IV, D+
Prime Window: September to October (Autumn), May (Spring)
Known Hazards: 4 major objective risks noted
View Detailed Topography

Documented Expeditions (2)

The 1956 Japanese postal stamp commemorating the conquest of Manaslu by Toshio Imanishi and Gyalzen Norbu.
Historic First Ascent & Japan's First 8,000m Peak Triumph🧗 Aritsune Maki +2
🏔️ Manaslu📅 1956-05-09

1956 Japanese Manaslu Expedition

Led by Aritsune Maki, this historic Japanese Alpine Club expedition made the first ascent of Manaslu (8,163m) on May 9, 1956, when Toshio Imanishi and Sherpa Sirdar Gyalzen Norbu conquered the Mountain of the Spirit, followed two days later by Kiichiro Kato and Minoru Higeta.

Read Expedition Report

Associated Chronicles & Stories (2)

Documented Sources & Archival Citations

  • Manaslu: 1954-1956(Aritsune Maki / Japanese Alpine Club)

    Supporting claim: Detailed record of Gyalzen Norbu's leadership and the May 9, 1956 summit push

    Accessed/Documented: 1958
  • Makalu: 8,470 Metres(Jean Franco / Jonathan Cape)

    Supporting claim: Official French expedition narrative documenting Gyalzen Norbu's May 16, 1955 summit ascent

    Accessed/Documented: 1957
  • The Himalayan Database: Gyalzen Norbu Roster(Elizabeth Hawley Archive)

    Supporting claim: Official historical verification of dual 8,000m maiden first ascents

    Accessed/Documented: 2026