Karasuk (river)
Karasuk is a river in Novosibirsk Oblast, Russia. It is long, with a drainage basin of.
The Karasuk begins some southwest of Novosibirsk, at 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, at the border with Kazakhstan. At high water levels some water will flow through the river Chuman to the Burla, 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, to the Bagan River. The Karasuk has no major tributaries.
At the river's lower reaches lies the town and railway hub of Karasuk, named after the river.
The source region of the Karasuk River was 26 March 2007 declared a special protected area.
