 The Tambo River South Branch, which originates on the Nunniong Plains in the hills east of Bindi, flows north to join the main river near its origin.The Tambo also has a number of more seasonal creeks entering along its length, including Swifts Creek which enters from the west at the town of the same name, Haunted Stream which enters from the west to the north of Tambo Crossing, with other minor tributaries including Junction Creek and Deep Creek.The central Tambo River area around Ensay and Swifts Creek have a mean annual rainfall of , with the lower section of the basin around Bruthen getting .