Morong River

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Morong River
Country Philippines
Basin features
Main source Antipolo, Rizal
River mouth Northern tip of the middle lobe of Laguna de Bay
< 2 m (6.6 ft) above sea level
Basin size 70.21 km2 (27.11 sq mi)
Physical characteristics
Length 10 km (6.2 mi)

The Morong River (Tagalog: Ilog ng Morong), also referred to as the Morong-Teresa River, is a river system in Rizal, Philippines. It is one of 21 major tributaries of Laguna de Bay. It covers 14 barangays and stretches 10 kilometers from Antipolo City down to Teresa, Rizal, Morong, Rizal and finally to Laguna de Bay.

The Morong River sub-basin has a drainage area of 70.21 square kilometers.[1]

On 1991, a study noted that eutrophication in Laguna de Bay could be attributed to nutrients brought to the lake as a result of the tremendous deterioration of the Morong River and the San Pedro River. In the case of the Morong River, this increase was said to be a result of draining effluents from hog farms.[2]

A 1994 cleanup drive initiated by the Laguna Lake Development Authority in cooperation with the local communities and local government units of Antipolo, Morong, and Teresa removed some seven truckloads of garbage and cleared a three-kilometer portion of the river from water lilies blocking the waterway.[3]


  1. ^ Liongson, Leonardo; Guillermo Q. Tabios III; Antonio Daño (2005), "Laguna Lake’s Tributary River Watersheds", in Lasco, Rodel D.; Espaldon, Ma. Victoria O., Ecosystems and People: the Philippine Millennium Ecosystem Assessment (MA) Sub-global Assessment (PDF), Environmental Forestry Programme, College of Forestry and Natural Resources, University of the Philippines Los Baños 
  2. ^ The Laguna de Bay Masterplan, 1995, archived from the original on 2007-09-29, retrieved 2007-09-30 
  3. ^ Angeles, Fernan (June 18, 2004), "LLDA leads Rizal river clean-up drive", The manila Bulletin, archived from the original on December 4, 2005 

See also[edit]

Coordinates: 14°30′N 121°15′E / 14.500°N 121.250°E / 14.500; 121.250