The main branch of this river originates from the heights of the eastern slopes in the south of Golpayegan and western Khansar. After adjoining the Kharqab and Khomein Rivers, its name changes to La'l Bar which crosses the south of Mahalat and western Delijan entering Qom and joins the Qarah Chay in the Dallak Bridge region and ends up in Maseeleh. On its way, this river creates beautiful scenes. It is in close proximity to the natural attractions of the beautiful city of Mahalat, as well as its parks and green houses. Mahalat Thermal Springs have created a beautiful landscape for tourists. The construction of the Panzdah Khordad Dam in Abbas Abad of Delijan, has provided the opportunity for water skiing, fishing, and other water sports.