Kali Gandaki Gorge

The Kali Gandaki Gorge (also called Andha Galchi and the upper part Thak Khola) is the canyon cut by the Kali Gandaki as it flows south from the Tibetan border through Mustang toward the Ganges. The gorge separates the giant massifs of Dhaulagiri to the west and Annapurna to the east and is notable for the very large elevation difference between the river and the adjacent 8,000-meter peaks.

Geologically, the river has incised deeply as the mountains rose, producing sheer-sided canyon sections; the deepest stretch is near Lete, a few kilometres south of Tukuche. The area is also known for shaligram fossils on the riverbed, which are treated as sacred objects by many Hindus.

Historically the gorge was part of trans-Himalayan trade routes used by local Thakali communities, and today it remains a transport corridor and the core landscape for trekkers on the Annapurna Circuit. Much of the gorge lies inside the Annapurna Conservation Area, so settlements are sparse and the landscape remains largely rugged.

• Dhaulagiri-Annapurna skyline: Towering peaks flank the river, creating dramatic vertical contrast that is especially striking where the canyon narrows between the two massifs.
• Deepest stretch near Lete: The gorge reaches some of its greatest depth around Lete and the Tukuche area, where the river runs hundreds to thousands of meters below nearby peaks.
• Shaligram fossil beds: Exposed fossil stones along parts of the river are culturally significant and a notable geological curiosity.
• Traditional Thakali villages: Small settlements such as Marpha and Tukuche offer a glimpse of local architecture, cuisine and the trade history of the valley.
• Trekking and river views: Walks and sections of the Annapurna Circuit provide sustained viewpoints into the canyon and safe vantage points for photography.

The nearest major tourist hub is Pokhara, which has air and road connections to the Annapurna region and is the usual starting point for journeys into the Kali Gandaki valley. Regional flights also serve Jomsom in the Mustang valley from Pokhara when operating.

The gorge is reached either by road or on foot as part of the Annapurna Circuit trek; many visitors travel by bus or jeep from Pokhara toward Beni and Jomsom and then continue locally, or join a guided trek that follows valley trails. For the final stretches expect basic roads, seasonal closures and remote conditions, so plan transport locally.

• The gorge floor sits well above sea level (the river near the deepest stretch is around 2,520 m), so allow time to acclimatize when coming from low altitude.
• Monsoon months bring heavy rain and landslide risk in the valley; check seasonal road and trail conditions before travel.
• Respect local religious customs around shaligram fossils and ask before removing or handling specimens.
• Facilities are limited in the more remote stretches; carry water, snacks and some cash for village services.
• Sun can be strong at high elevations even in cool weather, so bring sun protection and layered clothing.