Chatkal valley is located in the western Tien-Shan between Chandalash and Chatkal ridges. The highest point of the valley it is Chatkal peak (4503 m).
The valley stretches for 150 miles and formed by river Chatkal. In the north-east of the valley there is a road that leads to Talas region through the pass Kara-Buura.
There are coniferous and deciduous forests, thickets of juniper and alpine meadows in the valley. The northern part of the valley rich in glaciers. The fauna of Chatkal valley is quite diverse. It is a habitat for marmots, wild boars, foxes, bears, deer, marten, Siberian ibex and snow leopards.