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Terskey Ala-Too
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The Terskey Ala-Too is a spectacular and massive mountain range within the Tian Shan system, serving as a dramatic natural fortress wall along the entire southern shore of Lake Issyk-Kul. The name "Terskey" literally translates to "shady side" in Kyrgyz, highlighting the fact that its steep northern slopes face away from the direct sun. The mountain chain spans approximately 354 kilometers in length and reaches its maximum elevation at the majestic Karakol Peak, which soars to 5,216 meters. The range is globally renowned for its deeply cut, densely forested gorges that plunge dramatically toward the lake basin, most notably the iconic Jeti-Ögüz (Seven Bulls) gorge, the Karakol Valley, and the natural hot springs of Altyn-Arashan. The extensive glaciers of the Terskey Ala-Too act as the primary freshwater source for Issyk-Kul and significantly influence the basin's microclimate. Covered in thick spruce forests, pristine alpine pastures, and rushing mountain rivers, the Terskey Ala-Too is widely considered one of Central Asia's premier destinations for multi-day trekking and horseback riding adventures.
- Location: Kyrgyzstan
- Nearby: Altyn-Arashan (13 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -18 | -16 | -10 | -3 | 1 | 4 | 7 | 6 | 2 | -4 | -11 | -16 |
| Rain mm | 7 | 11 | 15 | 29 | 43 | 50 | 45 | 50 | 34 | 18 | 14 | 9 |
📋 Practical info
Getting there
Access is usually via the town of Karakol on the eastern shore of Lake Issyk-Kul, from which gravel roads lead into the mountain valleys. Many hiking trails start directly at the end of these accessible tracks.
Best season
The best hiking season is from July to September, when high passes are clear of snow and alpine meadows are in full bloom. In winter, the region becomes a popular destination for ski touring and hot spring visits.
Terrain & paths
The terrain encompasses lush green valleys, dense fir forests, and rugged, glaciated peaks exceeding 4,000 meters. Hikers must often cross rivers and navigate steep scree slopes on the way to high mountain passes.
What to bring
Sturdy mountain boots, layered weatherproof clothing, and sleeping bags for cold nights in tents are necessary for trekking. Swimwear is a must to enjoy the natural hot springs in valleys like Altyn-Arashan.
Parking
Secure parking is available in Karakol; many hikers leave their vehicles at guesthouses and take 4WD taxis to the trailheads. At some valley entrances, there are guarded parking spaces available for a small fee.
Safety
Weather in the Tian Shan can change extremely rapidly, so always be prepared for sudden cold and rain. Watch for signs of altitude sickness and avoid crossing rushing rivers during the late afternoon melt.
Time needed
Trekking trips typically last between 3 to 7 days, such as the popular route to Ala-Kul Lake. For a short visit to the hot springs in the lower valleys, a long day trip from Karakol is often sufficient.
Geography
Facts
- Forms the majestic, towering southern backdrop to the massive Lake Issyk-Kul.
- "Terskey" literally means "shadowy side" due to its north-facing slopes.
- Karakol Peak marks the absolute highest point in the range at 5,216 meters.
- The entire mountain chain extends for approximately 354 kilometers.
- Features highly famous valleys like Jeti-Ögüz and Altyn-Arashan.
- Glaciers in the range act as the primary freshwater source for Issyk-Kul.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
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Sights in the town Terskey Ala-Too (1)
Sights nearby
Frequently asked questions
What are the most famous sights in Terskey Ala-Too?
The Jeti-Oguz rock formations, Ala-Kul Lake, and the Altyn-Arashan hot springs are highlights.
Which city serves as the best starting point?
The city of Karakol at the eastern end of Lake Issyk-Kul is the handy gateway for expeditions here.
How difficult is the trekking to Ala-Kul Lake?
It is challenging and requires good fitness as you cross passes over 3,800 meters.
Are there wild animals there?
Yes, ibex, marmots, and with much luck, snow leopards live in the remote high altitudes.
When does the snow melt on the passes?
Usually by late June or early July; before that, old snow can hinder trekking.
Terskey Ala-Too: where is it located?
Terskey Ala-Too is located in Kyrgyzstan.
Terskey Ala-Too: when is the best time to visit?
The most pleasant time to visit is Jun, Aug.
Terskey Ala-Too: why is it worth visiting?
The Terskey Ala-Too is a spectacular and massive mountain range within the Tian Shan system, serving as a dramatic natural fortress wall along the entire southern shore of Lake Issyk-Kul.
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Nearby cities
Karakol
The administrative capital of the Issyk-Kul Region, situated at the eastern end of the lake of the same name.
Balykchy
A city at the western end of Lake Issyk-Kul, which was an important transport hub for a long time.
Bokonbayevo
A picturesque village on the south shore of Lake Issyk-Kul, known as a center for Kyrgyz traditions and eagle hunting.
Cholpon-Ata
A popular resort town on the northern shore of Lake Issyk-Kul, known for its sandy beaches and sanatoriums.
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Kaji-Say
A former mining village on the southern shore of Issyk-Kul, now famous for its sandy beaches and proximity to Skazka Canyon.
Tosor
A small coastal village on the southern shore, famous for its shallow sandy beaches and the challenging Tosor Pass.
Altyn-Arashan
A picturesque alpine valley famous for its natural hot sulfur springs and stunning views of the Palatka Peak.
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Semyonovka
A village on the northern shore providing access to the Semyonovka Gorge and the historic Kyrchyn Valley.
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Grigorievka
A village on the northern shore of Issyk-Kul, known as the gateway to the stunning Grigorievka Gorge and its mountain lakes.
Engilchek Glacier
One of the largest and longest mountain glaciers in the world, located in the heart of the majestic Tian Shan Mountains.
History & landmarks
Dungan Mosque
A colorful mosque in Chinese pagoda style, built in 1910 by Chinese Muslims in Karakol.
Holy Trinity Cathedral
A beautiful wooden Orthodox church in Karakol, built in 1895 without a single iron nail.
Karakol Historical Museum
A small but rich museum showcasing local history and the legacy of the Russian explorer Nikolai Przhevalsky.
Jeti-Ögüz Rocks
An impressive geological formation of red sandstone rocks, which according to legend resembles seven petrified bulls.
Skazka Canyon
A colorful canyon on the southern shore of Lake Issyk-Kul, with bizarre rock formations resembling castles and animals.
Rukh Ordo Cultural Center
A spiritual and architectural complex in Cholpon-Ata dedicated to the five major world religions.
Petroglyphs of Cholpon-Ata
A massive open-air museum featuring thousands of ancient rock carvings depicting hunting scenes and animals.
Nature
More places
Kumtor Gold Mine
One of the highest gold mines in the world, located in the Tian Shan mountains.
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Jyrgalan Valley
A pristine valley in eastern Kyrgyzstan that has developed into a hub for ecotourism and freeride skiing.
Syrt Plateau
A vast, desert-like plateau in the inner Tian Shan, extending at an elevation of over 3000 meters.
Karkara Valley
A picturesque river valley on the border with Kazakhstan, known as a base camp for helicopter expeditions to Jengish Chokusu.
Tien Shan
The impressive Tien Shan mountain system traverses Kyrgyzstan and dominates the country's landscape.
Jengish Chokusu
The highest mountain in Kyrgyzstan and the Tian Shan range, reaching an elevation of 7439 meters on the border with China.
Khan Tengri
A striking pyramid-shaped peak in the Tian Shan mountains, forming the tripoint border of Kyrgyzstan, Kazakhstan, and China.
Kungey Ala-Too
The northern mountain range enclosing Lake Issyk-Kul and forming the natural border with Kazakhstan.