The Saigon River is a tributary of the Dong Nai River. The river originates from the Cham canal, with a relative altitude of about 150 m, located in Loc Ninh district, Binh Phuoc province, and then flows through the natural boundary between Binh Phuoc and Tay Ninh provinces, across Dau Tieng Lake, It flows through Binh Duong province, is the boundary between Binh Duong and Ho Chi Minh City, merges with Dong Nai river into the Dong Nai river system, flows into the sea. In the upstream of the river flows in the north-south direction, the middle and downstream of the river flow in the northwest-southeast direction .. The Saigon River is 256 km long, flows along the territory of Ho Chi Minh City about 80 km. the average volume is about 54 m³ / s, the width in the city is about 225 to 370 m, the depth is up to 20 m, the catchment area is over 5,000 km².
Dau Tieng Lake was built to regulate flows, limit floods and saline intrusion downstream, and provide water to Tay Ninh, the northwest area of Ho Chi Minh City and Long An. Dau Tieng Lake blocked the flow from June 24, 1984, affecting the natural flow of the Saigon River.