Buluan

Lake Buluan lies in the low interior of Mindanao, amid marshy basins associated with the Pulangi, Maanoy, Buluan and Alah rivers. The Buluan River carries water from the lake towards the Liguasan Marsh and the Mindanao River. Before American rule the lake was surrounded by lands of the Sultanate of Buayan.

The later city of Koronadal lies here.