Kökkyya () is a river in At-Bashy District, Naryn Region, Kyrgyzstan. It is a right tributary of the Aksai River and flows through the Aksai Valley. The river originates in the Kakshaal Too and is part of the Tarim Basin through the Aksai and Toshkan rivers.
Geography
The Kökkyya is long and has a drainage basin of . In its upper reaches, the valley alternates between narrow and broad sections, and in some places the river divides into several channels.
Near its source, at an elevation of , lies Köl-Suu, which has an area of .
Hydrology
The river is fed mainly by snowmelt, glaciers, and springs. Its average annual discharge is . Peak flows occur in July, while the lowest flows are observed in March. Water levels begin to decline in September and start rising again in May.
Tributaries
Major tributaries include:
Right tributaries: Aksay-Uuru (29 km), Tuyuk-Botomoynok (28 km), and Karabel (10 km); Left tributaries: Tuyuk-Khojent (13 km) and Khojent (11 km).
References