The Uchköl () is a river in the central Tien Shan in Kyrgyzstan and a right tributary of the Saryjaz River. The river is long, with a drainage basin area of . It originates on the southern slope of the Terskey Alatoo. In its upper reaches it is known as Sarychat, while in the middle course it is called Eertash; in the lower course, after turning eastward, it is known as Uchköl.
The basin contains 165 glaciers (total area ) and 13 lakes. The valley is used as pastureland.
Course Uchköl rises on the southern slope of the Terskey Alatoo. In its upper reaches it is known as the Sarychat and flows eastward. In its middle course, where it is called the Eertash, it turns south and flows through a narrow valley. In its lower course the river turns eastward, takes the name Uchköl, and joins the Saryjaz River.
Hydrology The mean annual discharge at the mouth is . The highest flows occur in July and August, reaching , while the lowest flows occur in February and March, when discharge falls to .
Glaciers and lakes The Uchköl basin includes 165 glaciers with a combined area of , and 13 lakes.
References