Nepal Has Mapped 2,070 Glacial Lakes. The One That Burst Was Not On the List.

Climate & Environment A new ICIMOD and UNDP inventory counts 3,624 glacial lakes and flags 47 as dangerous — 42 of them in the Koshi basin. The lake that killed at least… By Maya Rai · Aug 27, 2026 Read the full story

ICIMOD and the UNDP have just published a new inventory of the glacial lakes above Nepal, Tibet and northern India. They mapped 3,624 of them and judged 47 potentially dangerous. It landed within a day of the Rasuwa flood. And the two together say something… Travel Himalaya Nepal · News

Where the dangerous ones are

The 47 are not spread evenly. They are overwhelmingly in one basin. Potentially dangerous glacial lakes, by river basin The Koshi basin drains the Everest region. That is where 42 of the 47 sit, and it is why the Khumbu has more monitoring and more… Travel Himalaya Nepal · News

This has happened before, and it keeps taking the same things

An outburst in the Mahalangur Himal, one of the first in Nepal to be studied properly. Five million cubic metres released from the Langmoche valley, peaking at 1,600 cubic metres a second. It destroyed a newly built hydropower station at Thamo, around 30… Travel Himalaya Nepal · News

The part the inventory cannot fix

An inventory works on lakes that are there to be counted. It is genuinely useful: it is why Tsho Rolpa and Imja have been lowered and monitored, and why the Khumbu has warning systems at all. But three of the five events above — 1998, 2017 and 2026 — were… Travel Himalaya Nepal · News

What this actually means if you are trekking

Honestly: less than the numbers suggest, and we would rather say so than frighten you into a booking somewhere else. These are high-valley events on specific rivers. The Annapurna and Everest trekking trails were untouched in August, and they are running… Travel Himalaya Nepal · News

Annapurna and Everest are open this autumn

Both were untouched. These are the two we are putting people on for October and November, at the price a pair pays: Annapurna Base Camp — 7 days &middot; from US$730 per person Everest Base Camp — 14 days &middot; from US$1,650 per person Ask us about your… Travel Himalaya Nepal · News

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