Rio Grande de Mindanao

The Rio Grande de Mindanao, also known as the Mindanao River, is the second-largest river system in the Philippines. Located on the southern island of Mindanao, with a total drainage area of 23,169 square kilometres (8, 946 mi2), draining the majority of the central and eastern portion of the island. It forms at the confluence of Kabacan and Pulangi rivers, and a total length of approximately 373 kilometres (232 mi) to its source at the head of the Pulangi River. It is an important transportation artery, used mainly in transporting agricultural products and, formerly, timber. Its headwaters are in the Kitanglad Mountain Range of Impasugong, Bukidnon, south of Gingoog in Misamis Oriental, where it is called the Pulangi River. Joining the Kabacan River, it becomes the Mindanao River. Flowing out of the mountains, it forms the center of a broad, fertile plain in the southcentral portion of the island. Before its mouth in Illana Bay, it splits into two parallel sections, the Cotabato and Tamontaka, separated by a 180 metres (590 ft) hill. Population centers along the river include Cotabato City, Datu Piang and Midsayap.

Flows through: Philippines.

River data from Wikidata (CC0); lengths normalised to a common unit.