Karasuk (river)

The Karasuk (Карасук) is a river in Novosibirsk Oblast, Russia. It is 531 km long, with a drainage basin of 11300 km2.

The source region of the Karasuk River was declared a special protected area on 26 March 2007.

Course
The Karasuk begins some 100 km southwest of Novosibirsk, at 190 m above sea level. It flows in a southwesterly direction through a wide valley in the southern part of the Baraba Steppe, and terminates in an endorheic basin of small lakes and swamps at an elevation of 105 m, at the border with Kazakhstan. At high water levels some water will flow through the river Chuman (Чуман) to the Burla (Бурла), which branches from the main river towards the south, east of the town of Karasuk. Yet more water will branches off towards the north, via the Baganyonok River branch (Russian: Баганёнок), to the Bagan River. The Karasuk has no major tributaries, but there are lakes in his basin, such as Astrodym.

At the river's lower reaches lies the town and railway hub of Karasuk, named after the river.