Mongolia and Kazakhstan do not share a border. At their closest point in the Altai Mountains they are separated by a narrow strip of Russian and Chinese territory, well under 100 km wide. To travel overland from Kazakhstan to western Mongolia, most travellers go through Russia’s Altai Republic along the Chuysky Trakt to the Tashanta–Tsagaannuur border crossing, then on to Ölgii. This needs valid Russian and Mongolian entry. The simplest alternative is to fly to Ulaanbaatar and connect to Ölgii.
Key Takeaways
- No shared border: Russia and China separate Mongolia and Kazakhstan
- Distance: the gap at the Altai is well under 100 km
- Overland route: Kazakhstan, then Russia’s Altai via the Chuysky Trakt, then Tashanta–Tsagaannuur, then Ölgii
- Requirements: Russian visa or visa-free status, plus Mongolian entry
- Closures: crossings may close on weekends and holidays such as Naadam
- Easiest option: fly to Ulaanbaatar, then take a domestic flight to Ölgii
It’s one of the most common geography questions about Central Asia, and the answer surprises many people: Mongolia and Kazakhstan do not share a border. Yet they are very close, and western Mongolia is home to a large Kazakh community. Here’s the story behind the “missing” Mongolia–Kazakhstan border, and how travellers move between the two countries.
How close are Mongolia and Kazakhstan?
At their nearest point, in the Altai Mountains, the two countries are separated by a narrow strip of land, well under 100 km, where Russia and China meet. The western end of the Mongolia–Russia border lies close to the tripoint where China, Kazakhstan and Russia come together. So although you can almost see one country from the mountains of the other, you can’t cross directly.
Why are there Kazakhs in Mongolia?
Kazakh herders moved into the Altai region of what is now western Mongolia during the 19th century, seeking pasture. When modern borders were drawn, many stayed. Today most Kazakhs in Mongolia live in Bayan-Ölgii province, where they form the majority. They kept their language, Islamic faith and traditions, including the famous art of eagle hunting.
Learn more: Cultural heritage of Kazakh people and Kazakh vs Mongol nomads in the Altai.
How to travel from Kazakhstan to western Mongolia
Option 1: Overland via Russia’s Altai Republic
The classic overland route goes through Russia:
- Cross from north-eastern Kazakhstan into Russia.
- Travel through the Altai region (Barnaul and Gorno-Altaysk) to the spectacular Chuysky Trakt (M-52) highway.
- Follow the Chuysky Trakt to Tashanta, the last Russian settlement.
- Cross the Tashanta–Tsagaannuur border into Mongolia’s Bayan-Ölgii province.
- Continue to Ulgii, about 100 km from the border.
Important: this route requires a valid Russian visa (or visa-free status) and Mongolian entry. Border crossings can close on weekends and public holidays, such as during Naadam in July. Check the current status, opening hours and foreigner rules before you go. It’s a popular route for overland motorcyclists and 4×4 travellers. See Ulgii to Altai Tavan Bogd by motorbike.
Option 2: Overland via China
In theory you can also travel through China’s Xinjiang region, but Chinese border crossings with Mongolia in the west have very limited access for foreigners, and routes change. For most travellers the Russian route is far more practical.
Option 3: Fly
The easiest way is to fly from Kazakhstan to Ulaanbaatar (direct flights operate between Almaty or Astana and Ulaanbaatar in some seasons), then take a domestic flight west to Ulgii.
Mongolia vs Kazakhstan: quick comparison
| Mongolia | Kazakhstan | |
|---|---|---|
| Size | About 1.56 million km² | About 2.7 million km², the world’s largest landlocked country |
| Population | About 3.5 million | About 20 million |
| Main language | Mongolian | Kazakh (plus Russian) |
| Kazakh culture | Strongly preserved in Bayan-Ölgii | National culture |
| Eagle hunting | Living tradition in Bayan-Ölgii | Practised in several regions |
Combining Kazakhstan, Russia’s Altai and Mongolia
The Altai Mountains link all four countries: Kazakhstan, Russia, China and Mongolia. An overland journey from the Kazakh steppe through Russia’s Altai to the eagle hunters of Bayan-Ölgii is one of Central Asia’s great road trips. Once in Mongolia, continue to Altai Tavan Bogd or spend time with Kazakh eagle hunters.
Coming overland from Russia or Kazakhstan? Ask us about meeting you after the Tsagaannuur border, sorting your border-zone permits and guiding you into the Altai. Contact us with your dates.
Border regulations change. Always confirm current rules with official sources before planning an overland crossing.
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Does Mongolia border Kazakhstan?
No. The two countries are separated by a narrow strip of Russian and Chinese territory in the Altai Mountains.
Why do Kazakhs live in Mongolia?
Kazakh herders moved into the Altai region in the 19th century in search of pasture. Most of Mongolia’s Kazakhs live in Bayan-Ölgii province, where they are the majority.
How do I travel overland from Kazakhstan to Mongolia?
Cross into Russia, travel through the Altai region along the Chuysky Trakt to Tashanta, and cross into Mongolia at Tsagaannuur. You need valid entry documents for both Russia and Mongolia.
Is the Tashanta–Tsagaannuur border open to foreigners?
It has been used by foreign overland travellers, but opening days and rules change and it can close for holidays. Check the current status with official sources before you travel.