ShidertiThe Shiderti is a river of Kazakhstan. It is long, and has a drainage basin of.CourseThe river has its source under the name Sarapan in the central part of the Kazakh Uplands, northern part of Karaganda Region. It flows roughly northwestwards and discharges into lake Shaganak. The Irtysh–Karaganda Canal runs along the Shiderti river in its upper and middle course flowing in the opposite direction.