Ilagan River

River in Cagayan Valley, Philippines
16°18′42.47″N 121°59′6.98″E / 16.3117972°N 121.9852722°E / 16.3117972; 121.9852722 MouthCagayan River
 • location
Ilagan, Isabela
 • coordinates
17°10′7.75″N 121°53′16.85″E / 17.1688194°N 121.8880139°E / 17.1688194; 121.8880139Length189 km (117 mi)Basin size3,132 km2 (1,209 sq mi)Discharge  • average270 m3/s (9,500 cu ft/s)[1] Basin featuresProgressionIlagan River – Cagayan RiverTributaries  • right
  • Abuan River
  • Bintacan River

The Ilagan River is a river in the province of Isabela, Cagayan Valley, Philippines. It is one of the major tributaries of the Cagayan River, the largest river in the Philippines. The Ilagan River originates from the western slopes of the Sierra Madre and drains the eastern central portion of the Cagayan River basin. It has an estimated catchment basin size of 3,132 square kilometres (1,209 sq mi)[2] and an estimated annual discharge of 9,455 million cubic meters/s. It flows westward and joins the Cagayan River at Ilagan City, Isabela.[1]

Tributaries

The Ilagan River at Ilagan City

The major tributaries of Ilagan River are:

  • Abuan River – originates from the mountains in the Northern Sierra Madre National Park where one of the widest tropical rainforests in the Luzon can be found.
  • Bintacan River

References

  1. ^ a b "The Cagayan River Basin". ABS-CBNNews.com. Retrieved 20 March 2014.
  2. ^ "Cagayan Riverine Zone Development Framework Plan". National Economic and Development Authority-Regional Development Council Region 2. Retrieved 20 March 2014.[permanent dead link]
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City of Ilagan
Isabela, Cagayan Valley, Philippines
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