← Back to list

GUNUNG · Pakistan

K2

Chhogori / Qogir (Ketu)

Source
K2

Photo: source

Information

Elevation
8.611 m
Country
Pakistan (PK)
Location / Range
Baltoro Muztagh, Karakoram
Mountain type
Non-volcanic mountain
Volcanic?
No (non-volcanic)
Coordinates
35.8811, 76.5133
Difficulty
Technical expedition at extreme altitude
Best Season
Summer expeditions; weather windows remain uncertain
Permits & Rules
Climbing permission through Pakistani authorities; confirm current requirements before an expedition
Hazards
Avalanches, seracs, storms and steep mixed terrain

Description

K2 is an 8,611 m non-volcanic Karakoram peak on the Pakistan–China border and the world’s second-highest mountain. The Pakistani approach reaches base camp on the Godwin-Austen Glacier. A summit expedition demands technical mountaineering skills and acclimatisation beyond ordinary trekking. Expedition accounts document storms, deep snow and avalanche threats that can end summit attempts. The route descriptions here draw on historical reports; camp locations, fixed ropes and access conditions should not be assumed to remain unchanged between seasons.

Routes

Abruzzi Spur (Punggung Tenggara) — jalur normal

Mountaineering teknis ekstrem / Extreme technical mountaineering

From the Pakistani side, the route passes House’s Chimney and the Black Pyramid toward the shoulder and Bottleneck before the summit. The 1992 expedition describes mixed rock and ice followed by snow and ice above the Black Pyramid. This is a historical route outline, not current camp or fixed-rope guidance.

Source

Cesen Route (Spur Selatan-Tenggara / Basque)

Mountaineering teknis ekstrem / Extreme technical mountaineering

The rocky south-southeast spur rises from the Godwin-Austen Glacier side and joins the Abruzzi at the shoulder. Posada describes difficult camp placement on steep terrain and a retreat from the Bottleneck. This account does not establish that the route is safer than the Abruzzi.

Source

Safety Statistics

High risk

Aggregated for prevention and awareness — not a casualty list. Read alongside the safety tips below.

12% Fatality rate per successful summit
96 Recorded deaths
800 Summits

Period 1954–2023 · As of Aug 2023: ~800 summits / 96 deaths. Before 2021 the ratio was roughly one death for every four people who reached the summit (~25%); recent waves of mass guided ascents lowered the cumulative ratio. K2 is often called the hardest and second-deadliest eight-thousander. · rate computed from sourced totals

Causes of death

  • Severe weather

    💡 K2 storms can last for days. Respect the weather window and turnaround time; don't get caught high when conditions deteriorate.

    Source
  • Fall

    💡 Steep, exposed terrain makes retreat hard, especially when descending exhausted. Save energy for the descent and stay roped on technical sections.

    Source
  • Avalanche

    💡 Snowy slopes are avalanche-prone, especially after storms. Monitor snow conditions and avoid high-risk hours.

    Source
  • Icefall / serac

    💡 The serac above 'the Bottleneck' can collapse without warning. Minimise time beneath it: start the summit push in the early hours and pass before the sun warms the ice.

    Source

Notable incidents

  • 1986 1986 K2 disaster season — 13 deaths

    During the summer of 1986, 13 climbers died on K2 across a series of incidents — prolonged storms, exhaustion, and accidents on descent. One of the mountain's deadliest seasons and a classic case study in decision-making at extreme altitude.

    Source
  • 2008 2008 K2 disaster — serac collapse in the Bottleneck

    On 1–2 August 2008, 11 climbers from several expeditions died in one of K2's worst disasters, many after an ice serac above 'the Bottleneck' collapsed and severed the fixed ropes during the descent. It underscored the danger of bottlenecking at a single chokepoint and the importance of timing discipline.

    Source
Statistics source: Source Source

Climbing Experiences

The retained videos were checked through oEmbed; their titles provide context rather than evidence of every terrain detail. Three primary American Alpine Journal reports add expedition experience: the 1992 Abruzzi success, a retreat in unstable snow, and a south-southeast spur attempt stopped by a storm. Alan Arnette’s coverage reports the winter ascent; it is not a claim that he participated in it.

References

The summary above is compiled from the following sources. Click to explore them yourself.

  1. 1 Wikipedia K2 en.wikipedia.org · EN
  2. 2 Wikidata K2 (Q43512) wikidata.org · EN
  3. 3 Encyclopedia Russian-American K2 Expedition publications.americanalpineclub.org · EN
  4. 4 Encyclopedia K2, South-Southeast Spur Attempt publications.americanalpineclub.org · EN
  5. 5 Encyclopedia K2 Attempt publications.americanalpineclub.org · EN