The At-Bashy Range () is a mountain range in the southern part of the Inner Tian Shan in Kyrgyzstan. It is located in At-Bashy District of Naryn Region. The range is long and up to wide. Its average elevation is about , and its highest point reaches .
Geography The highest part of the At-Bashy Range lies in its central section, where elevations exceed . The range becomes progressively lower toward both the western and eastern ends, where elevations are generally below .
Relief and geology The central crest of the range rises above the snow line. Its slopes are dissected by short, deep transverse gorges, and glaciers are common in the higher parts of the range. The At-Bashy Range is composed mainly of limestone and schist of Paleozoic age.
Vegetation The vegetation and landscapes vary considerably with elevation and slope exposure. On the southern slopes, alpine and subalpine landscapes occur at elevations of about , while alpine tundra occupies elevations of approximately .
On the northern slopes, mountain steppe occurs at , followed by mountain meadows at , subalpine and alpine vegetation at , and tundra at about . The western slopes are characterized by a combination of stony terrain, steppe, subalpine vegetation, and tundra.
Hydrology Several rivers originate on the southern slopes of the At-Bashy Range and form the Aksay River, a right tributary of the Kakshaal River (Toshkan River). They include the Keng-Suu, Kosh Kara-Tash, Muzdabas, Tuyuk Bogoshtu, Jol Bogoshtu, Kashka-Suu, and Tuyz Ashuu rivers.
The Kara-Koyun River, a left tributary of the At-Bashy River, rises on the northern slopes of the range.
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