Mindanao River edit
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Coordinates: 7°13′25″N 124°14′47″E / 7.22361°N 124.24639°E / 7.22361; 124.24639
Mindanao River
Rio Grande de Mindanao, Cotabato River, Pulangi River
River
The Pulangi River, winding thru the Maapag Plain in Valencia City, is one of the major tributaries of the Mindanao River
Country Philippines Philippines
Regions Northern Mindanao, SOCCSKSARGEN, ARMM
Tributaries
 - left Allah River, Buluan River
 - right Pulangi River
Cities Malaybalay City, Valencia City, Kidapawan City, Koronadal City, Cotabato City
Source
 - location Brgy. Kalabugao, Impasug-ong, Bukidnon, Northern Mindanao
 - coordinates 8°27′15″N 125°09′46″E / 8.45417°N 125.16278°E / 8.45417; 125.16278
Mouth Mouth of the Mindanao River
 - location Illana Bay, Cotabato City, SOCCSKSARGEN
 - elevation m (0 ft)
 - coordinates 7°13′25″N 124°14′47″E / 7.22361°N 124.24639°E / 7.22361; 124.24639
Length 373 km (231.77 mi)
Basin 23,169 km2 (8,945.6 sq mi)
Drainage map of Mindanao River

The Mindanao River, also known as the Rio Grande de Mindanao, is the second largest river system in the Philippines, after the Cagayan River of Luzon1. It is also the largest river on the southern Philippine island of Mindanao having a drainage area of 23,169 square kilometers, draining majority of the central and eastern portion of the island. It is also the second longest river in the country with a length of approximately 373 km (231.8 miles)2. It is an important transportation artery on the island, used mainly in transporting agricultural products and, formerly, timber.

Its headwaters are in the mountains of Impasug-ong, Bukidnon, south of Gingoog City 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 south-central portion of the island. Before its mouth in the Moro Gulf, it splits into two parallel sections, the Cotabato and Tamentaka, separated by a 180 m (600 ft) hill.

Population centers along the river include Cotabato City, Datu Piang, and Midsayap.

Contents

Course

The Mindanao River has its source in the Central Mindanao Highlands near the northern coast of the island, specifically on the northeastern part of the province of Bukidnon, where it is known as the Pulangi River. It then flows southward across the Bukidnon Plateau, fed up by its tributaries along the way and then emerges onto the Cotabato plains, depositing fertile mountain silt as it widens and arcs westward through the 1,000-square-mile (2,600 km2) Cotabato River Basin. It finally empties into Illana Bay at its mouth in Cotabato City.

Tributaries

River Delta

Details of the delta of the Mindanao River

As the Mindanao River meets Illana Bay, it branches out into two distributaries, the Cotabato in the north and the Tamontaka in the south at Cotabato City.

References

  1. ^ Kundel, Jim (June 7, 2007). "Water profile of Philippines". Encyclopedia of Earth. http://www.eoearth.org/article/Water_profile_of_Philippines#River_Basins_and_Water_Resources. Retrieved 2008-09-30. 
  2. ^ "Principal River Basins of the Philippines", Published by the National Water Resources Board, October 1976 (p. 12)