The river's major tributaries are the Agryzka, Chazh, Kyrykmas, Varzinka, and Varzi rivers. The mineralization 300 to 500 mg/l. Its drainage is regulated. The Izhevsk Reservoir was constructed in 1760 to supply Izhevsk industry with water. Since 1978 it is protected as a natural monument of Tatarstan. There are notable mineral springs in Izh valley.Izhevsk and Agryz are the cities along the river.