Kyzylsu River

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Hydrological basins in eastern Tajikistan

The Kysylsu ( " Red River ", called in the lower section of the river also Surchob ) is the true source of the river Vakhsh in Kyrgyzstan and Tajikistan.

The Kysylsu just East of Sarytasch in southern Kyrgyzstan on the southern flank of the Alai Mountains and flows in a westerly direction through the Alai valley. In particular, when the snow melt it is fed by numerous tributaries, spreading out into in its broad bed of rubble. the Kysyldsu leaves the Alai Valley at Karamyk pass through a gorge to Tajikistan, where it is called Surchob and later united with the Muksu the Vakhsh, one of the two sources of the Amu Darya. The Kysylsu has a length of 235 km. It drains an area of ​​8380 km ². 86 km above the mouth of the mean discharge ( MQ ) 40.6 m³ / s

The eastern Kysylsu

The smaller part of the Alai Valley east of Tongmurun Pass is drained by a Kysylsu also called river which rises on the northern flank of the Transalai chain and flows past Irkeshtam to Xinjiang and Kashgar. To distinguish between the two rivers is called occasionally also from the western and eastern Kysylsu Kysylsu.