7 facts about Mount Everest that surprise almost everyone
Its summit was once an ocean floor. It grows every year. And it's still rising. Here are the facts about the world's highest mountain that most people get wrong — and why they make the trek even more astonishing.

Everyone knows Everest is the highest mountain on Earth. Almost everything else people "know" about it is more surprising than they expect — starting with the fact that its summit was once at the bottom of an ocean. Here are seven facts that make standing in its presence even more astonishing.
Everest, by the numbers
- Official height: 8,848.86m (joint Nepal–China survey, 2020)
- It is still rising — the Indian plate keeps pushing it up a few mm a year
- The summit rock is marine limestone — once an ancient seabed
- First climbed in 1953 by Edmund Hillary and Tenzing Norgay
The surprises
The seabed-to-summit story is real: the top of Everest is made of limestone laid down underwater, lifted nearly nine kilometres into the sky by the collision of India and Asia — and that collision is ongoing, so the mountain is still growing. Above 8,000m lies the "death zone," where there is too little oxygen to survive for long. The mountain carries the name of a British surveyor, Sir George Everest, though Nepalis call it Sagarmatha and Tibetans Chomolungma. And you do not have to climb it to feel all of this — you can stand and look up at it from Base Camp.
| Fact | Detail | |
|---|---|---|
| Height | 8,848.86m | |
| Nepali name | Sagarmatha | |
| Tibetan name | Chomolungma | |
| First ascent | 1953, Hillary & Tenzing | |
| Death zone | Above 8,000m |
What this means for you
The more you know about Everest, the more you want to see it for yourself. You do not need to climb — the trek to Base Camp (or even a helicopter tour) puts you face to face with all of this history and geology. We will get you there.
Source: Travel Himalaya Nepal.
Cover photo: Nir B. Gurung via Wikimedia Commons (CC BY-SA 4.0).
Source: Travel Himalaya Nepal
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