Mari El and flows to the Vyatka near Malmyzh, Kirov Oblast.

Major tributaries are the Sarda, Kushket, Arborka, and Kuguborka rivers. The maximal mineralization 500-800 mg/L. The maximal water discharge is 149 m3/s (1980). Drainage is regulated. There are peat deposits in the river valley. Since 1978 it has been protected as a "natural monument of Tatarstan'". The localities of Baltasi