The river's drainage basin covers 3,190 square kilometres (1,230 sq mi).

[1] It begins near Tatarsky Yeltan, Chistopolsky District, Tatarstan, and flows to the Bolshoy Cheremshan in Ulyanovsk Oblast.

Major tributaries are the Cheboksarka, Savrushka, Bagana, Adamka, Vyalyulkina, Baranka, Marasa, Ata, Shiya, Yukhmachka rivers.

The average sediment deposition at the river mouth per year is 80 millimetres (3.1 in).

In its middle reaches the river crosses the biggest forest in Transkama Tatarstan.