Kosh-Agach is the biggest village of south-eastern part of the Republic of Altai. It can be translated as “couple of trees”. The main population of Kosh-Agach are Kazakhs (50%) and Altai (about 50%). Kosh-Agach was founded about two hundred years ago. Village is located in the middle of Chuya steppe near Chuya river, at an altitude of more than 1500 meters above sea level, near Mongolian и border. The distance from the village to the capital of the Altai Republic Gorno-Altaisk city is 465 km, the distance to the border with Mongolia is 50 km. Kosh-Agach is essentially the last settlement of civilization on Chuya highway . Beyond the village border zone restricts visiting this area without special permit, which can be acquired in Gorno-Altaisk, Aktas or Kosh-Agach.
The climate is harsh here, it makes agriculture almost impossible. Weather depends on factors of openness of area for coming winds and high arrangement. Kosh-Agach district is the driest territory of Altai. The precipitation here is less than in Astrakhan, and mounts of sunny days are more than in Sochi. Kosh-Agach village was founded in 1801 by Russian merchants. It has been actively developed in 1820-1840-ies. History of the village is connected with the development of cultural and economic relations between Altai and Mongolia, which was a part of Chinese Empire before the 1880s. Kosh-Agach was a center of accumulation of goods on the way to Mongolia and China. Therefore, the village grew and developed as trading center of south of the Altai Mountains.
Today, village has a small market, a cafe, a few small hotels, a lot of small shops, a cultural center, gas station, and even airport with a single runway. There are two religious institutions in Kosh-Agach: the mosque and the church of St. Peter and St. Paul. Kosh-Agach region was hard affected by a series of earthquakes in the Altai Mountains in autumn 2003. Construction of a new residential neighborhood of cottages have been begun to build since May 2003. The most important sights of Kosh-Agach are rock carvings dated of I millennium BC. - I thousand BC. In Elangash Valley, confluence of the Boguty River and the Naryn-Gol River; Ritual complex "Kara Dyurgun-2", complex of monuments Yustyd Valley.