Uly-Zhylanshyk Ұлы Жыланшық / Улы-Жыланшык
ISS image of Lake Akkol, where the Uly-Zhylanshyk has its mouth
Mouth location in Kazakhstan
Location
Countries	Kazakhstan
Physical characteristics
Source	Ulutau Kazakh Uplands
• coordinates	48°53′52″N 65°31′52″E / 48.89778°N 65.53111°E / 48.89778; 65.53111
• elevation	190 metres (620 ft)
Mouth	Akkol
• coordinates	48°51′04″N 63°46′42″E / 48.85111°N 63.77833°E / 48.85111; 63.77833
• elevation	103 metres (338 ft)
Length	277 km (172 mi)
Basin size	26,100 km2 (10,100 sq mi)

The Uly-Zhylanshyk (Kazakh: Ұлы Жыланшық; Russian: Улы-Жыланшык) is a river in Kazakhstan. It is 277 kilometres (172 mi) long and has a catchment area of 26,100 square kilometres (10,100 sq mi).^[1]

It is one of the rivers of the Turgay Depression, flowing across the Amangeldi and Zhangeldi districts of the Kostanay Region, Kazakhstan. Its waters are used for irrigation.^[2]

Course

The river is formed at the confluence of rivers Dulygaly-Zhylanshyk from the right and the Ulken-Zhylanshyk from the left. Both have their sources in the Ulutau range of the Kazakh Uplands. The Uly-Zhylanshyk flows roughly westwards all along its course, sometimes bending northwest for a certain distance and others to the southwest. As it reaches its last stretch the river meanders strongly. Finally it flows into the northeastern shore of lake Akkol, an endorheic salt lake located in Zhangeldi District, north of Shalkarteniz. The Uly-Zhylanshyk is fed mainly by snow.^[1][2][3][4]