This river originates from the skirts of Qareh Daq Mountains near the (Sejas Rood village), and after gaining water from various streams finally join the Rood-e-Shour to the west of Kharaqan after crossing the main Qazvin-Hamadan Road. Here, the river joins the Avaj and Kolanjin Rivers flowing to the north.
This river then passes the Saveh and Tehran townships and enters the Salt Lake 75 km. to the east of Qom.