Mount Tsurugi / Tsurugidake

Mount Tsurugi (Tsurugidake) is a fearsome 2,999-metre (9,839 ft) granite horn in the northern Hida Mountains of Toyama Prefecture, known as the most hazardous and technically challenging alpine peak in Japan.

Also known as: Tsurugidake, The Needle of Rock, Peak of the Sword
Official Elevation2,999 m
Prominence707 m
Documented Ascents1
Countries: Japan FlagJapan
Regions: Toyama Prefecture, Chūbu Region, Honshu
Mountain Range: Hida Mountains
The razor-sharp granite horn and sheer avalanche couloirs of Mount Tsurugi.
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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Historical Reference Record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.

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Geographical Setting & Topography

Chūbu-Sangaku National Park, Tateyama Range, Toyama Prefecture, Honshu, Japan.

Historic First Ascent

Date: July 13, 1907
Ascent Team: Yoshitaro Shibasaki, Chōjirō Uji, and the Imperial Japanese Army Land Survey Team

Verified Topographic Data

Key Statistics & Topographic Figures

Official Elevation
2,999 metres (9,839 ft)
Prominence
707 metres
First Modern Ascent
July 13, 1907
Crux Section
Kani-no-Tatebai (Crab's Vertical Crawl)
Mountain Range
Tateyama Range, Northern Japanese Alps
Historical Evidence & First-Hand Accounts

Archival Primary Source Quotations

“Tsurugidake is not a mountain of gentle steps; it is a monument of cold steel thrust through the crust of the earth.”

— Jirō Nitta (1977)Source: Tsurugidake: Ten no Ki
Domain Glossary & Definitions

Defined Alpine Terminology & Concepts

Kani-no-Tatebai
A near-vertical chained rock face on Mount Tsurugi requiring climbers to scale steep granite slabs with extreme exposure.
Kani-no-Yokobai
A horizontal cliff traverse on the descent from Mount Tsurugi where climbers step blind across an overhang above an abyss.
Live Conditions36°37′25″ N, 137°37′02″ E

Mount Tsurugi / Tsurugidake Mountain Weather Forecast

Downscaling atmospheric meteorological model for Mount Tsurugi / Tsurugidake (2,999 m)...
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Detailed 14-Day Summit Window & Weather Timeline

Explore day-by-day summit push safety windows, wind shear analysis, and extended multi-day forecasts for Mount Tsurugi / Tsurugidake.

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🧭 3D Cartographic Relief·Copernicus & Mapzen DEM

Explore Mount Tsurugi / Tsurugidake (2,999 m) in Interactive 3D

Inspect steep glacial walls, hanging seracs, ridge approaches, and elevation relief with 360° rotation and terrain tilt in WebGL.

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Documented Climbing Routes (1)

Mount Tsurugi Bessan Ridge & Kani-no-Tatebai Route climbing route
🧗Extreme Alpine Rock Scramble & Iron Chain Face
Grade III-IV alpine rock scramble, near-vertical chain wall (Tatebai), exposed cliff traverse (Yokobai)
+1,400 m

Mount Tsurugi Bessan Ridge & Kani-no-Tatebai Route

The Bessan Ridge and Kani-no-Tatebai Route is Japan's ultimate classic alpine rock scramble, leading to the razor-like 2,999-metre apex of Mount Tsurugi. Starting from Murodo across the Tateyama volcanic plateau, the route crosses Tsurugigozen col to follow a serrated granite arête featuring 13 distinct rock obstacles equipped with iron chains, bolts, and carved footholds. The crux of the ascent is the renowned Kani-no-Tatebai ('Crab's Vertical Crawl'), a sheer 50-metre near-vertical cliff face, while the descent requires overcoming the nerve-testing Kani-no-Yokobai ('Crab's Horizontal Traverse') across a sheer vertical void.

Difficulty: Extremely Technical & Hazardous / Alpine Grade III-IV Scramble
Prime Window: Mid-July to Late September (Snow bridges melted and chains fully cleared)
Known Hazards: 4 major objective risks noted
View Detailed Topography

Historical Expeditions (1)

Historic archival photo of the steep rock walls and snow couloirs of Mount Tsurugi.
Maiden Modern Ascent of Mount Tsurugi (2,999 m) and Discovery of Ancient Heian Bronze Relics🧗 Chōjirō Uji

1907 Imperial Land Survey Historic First Modern Ascent of Mount Tsurugi

On July 13, 1907, an Imperial Japanese Army Land Survey team guided by master matagi hunter Chōjirō Uji achieved the historic first modern ascent of Mount Tsurugi (2,999 m), conquering Japan's most formidable alpine peak and discovering ancient Heian-period pilgrim relics on the summit.

Read Expedition Report

Summit Chronicles & Stories (1)

Citability & Knowledge Retrieval

Frequently Asked Questions: Mount Tsurugi / Tsurugidake

What is Mount Tsurugi and why is it famous?

Mount Tsurugi (2,999 m) is a fearsome granite horn in Toyama Prefecture, renowned as Japan's most technical, dangerous, and rocky alpine peak.

What is Kani-no-Tatebai on Mount Tsurugi?

The 'Crab's Vertical Crawl', a famous near-vertical 50-metre rock face equipped with iron chains that forms the crux of the ascent to the summit.

Why was Mount Tsurugi feared in ancient Japan?

Buddhist folklore declared it a mountain of needles and swords reserved for the damned in hell, forbidding mortals from climbing its ridges.

Documented Sources & Archival Citations

  • Tsurugidake: Ten no Ki (The Summit: A Chronicle of Mount Tsurugi)(Bungeishunjū)

    Supporting claim: Historical survey expedition and first modern ascent of Mount Tsurugi in 1907

    Accessed/Documented: 1977