The Karakoram Range

1.1 What is the Karakoram Range, and which borders does it touch?

The Karakoram Range is a mountain system in south-central Asia, stretching roughly 500 kilometres. It’s one of the youngest and most active mountain belts on the planet. It runs from eastern Afghanistan southeast, along the watershed between Central and South Asia, before merging into the wider Himalayan system.

The borders of Pakistan, India, China, Afghanistan, and Tajikistan all converge within the Karakoram system, making it one of the most geopolitically dense mountain ranges on Earth. Most of the range lies in Gilgit-Baltistan, part of India’s Ladakh that Pakistan occupies illegally. Its eastern portion lies in the part of Ladakh that India holds. A smaller stretch lies in the Shaksgam Valley, which Pakistan illegally handed to China in 1963.

2.1 How does K2 compare, and how much ice does this range hold?

The Karakoram’s highest peak, K2, stands 8,611 metres tall, the second-highest peak on Earth after Everest. The range holds the greatest concentration of very high peaks anywhere on Earth, with four summits topping 7,900 metres.

It’s also the most heavily glaciated part of the world outside the polar regions, with 28 to 50 percent of its area under ice. “Karakoram” is Turkic for “black gravel,” a reference to the dark rock debris coating large stretches of these glaciers.

3.1 Why does the Siachen Glacier matter so much?

The Siachen Glacier, at about 76 kilometres, is the world’s second-longest glacier outside the polar regions. The nearby Biafo Glacier ranks third-longest, another sign of how much ice this one range holds.

Meltwater from these glaciers feeds rivers used by hundreds of millions of people downstream, which is why scientists call ranges like this “water towers” for the region. The range’s southeastern portion includes the Siachen Glacier, held by India since 1984. It is the world’s highest-altitude military post.

4.1 Why is the world’s second-highest peak just called “K2”?

K2 got its name in 1856 from Survey of India officer Thomas Montgomerie, simply as the second peak he measured in the Karakoram Range. The peak is too remote and hidden from any nearby town to have ever picked up a local name, unlike Everest or Kangchenjunga.

Surveyors proposed “Mount Godwin-Austen” after an early surveyor, but the Royal Geographical Society rejected it, and the plain survey code K2 stuck instead.

5.1 What is Concordia?

The Baltoro Glacier, the Karakoram’s third-longest at about 62 kilometres, carries trekkers toward K2 from the Baltistan side. Where the Baltoro meets the Godwin-Austen Glacier, at a spot called Concordia, four of the world’s fourteen 8,000-metre peaks are visible at once. American climber Galen Rowell nicknamed this junction the “Throne Room of the Mountain Gods,” a name that stuck in mountaineering circles.

6.1 Why is the Karakoram’s relief so steep?

The Karakoram belongs to the same broad mountain-building belt as the Himalaya, raised by the ongoing collision of the Indian and Eurasian plates that began roughly 50 million years ago. GPS measurements show the range is still being squeezed upward by several millimetres a year, and it still produces large earthquakes.

That rapid uplift, combined with rapid erosion, gives the Karakoram some of the sharpest relief on Earth, over 5,000 metres from valley floor to summit in just 10 to 15 kilometres.

7.1 Which wrong pairings do exams plant?

Exams love pairing real Karakoram names with a wrong location, betting you’ll recognise the name and skip checking the place. Gasherbrum is Karakoram, not Pir Panjal. Siachen sits north of the Nubra Valley, not east of Aksai Chin.

8.1 Why did Karakoram glaciers stay stable while others shrank?

Scientists call this puzzling pattern the Karakoram anomaly. For decades, unlike most Himalayan glaciers, Karakoram glaciers stayed stable or even grew, despite global warming. Researchers eventually traced this to a large seasonal atmospheric vortex centred over the range, which brings heavier winter snowfall to offset summer melt.

Steep, high terrain also shades much of the ice and gives glaciers large high-altitude zones where snow keeps accumulating.

9.1 What happened to the Pamir’s own version of this anomaly?

The same stable-glacier pattern also held in the nearby Pamir range in Tajikistan, part of what scientists call the Pamir-Karakoram anomaly. In September 2025, a research team from the Institute of Science and Technology Austria reported that the Pamir side of this anomaly has now ended, tracing the tipping point to a sharp 2018 drop in snowfall.

It’s a warning sign for the whole region: even the Karakoram’s own stability may not hold forever.

10.1 When was K2 first climbed in winter, and by whom?

K2 was the last of the world’s 8,000-metre peaks to be climbed in winter, a feat achieved only on 16 January 2021. Ten Nepali climbers, mostly Sherpas, reached the summit together, deliberately pausing just below the top so the whole team could summit as one. Every other 8,000-metre winter first ascent before this one had been made without a single Nepali climber on the team.

11.1 What did the January 2026 flood-risk study find?

A January 2026 study in the journal npj Natural Hazards warned that glacial lake outburst flood risk across the Himalaya-Karakoram region remains poorly assessed. Nearly one million people live within 10 kilometres of a glacial lake across this belt, with Pakistan recording the highest number of outburst-flood events of any country studied.

More glacial lakes are forming as the Karakoram anomaly weakens, exactly the kind of shift the study says isn’t being tracked closely enough.