The Abra River is the sixth largest river system in the Philippines in terms of watershed size. It has an estimated drainage area of 5,125 square kilometres (1,979 sq mi) and a length of 178 kilometres (111 mi) from its source in the vicinity of Mount Data in Benguet province.
|⁃ location||Benguet, Cordillera Administrative Region|
|⁃ elevation||2,310 m (7,580 ft)|
|Mouth||South China Sea|
|Caoayan, Ilocos Sur|
|0 m (0 ft)|
|Length||178 km (111 mi)|
|Basin size||5,125 km2 (1,979 sq mi)|
|⁃ right||Tineg River|
The Abra originates in the southern section of Mount Data. It descends westward to Cervantes, Ilocos Sur, and flows into Abra province. At a point near the municipality of Dolores, it is joined by the Tineg River, which originates in the uplands of Abra.
- Vicente B. Tuddao Jr. (September 21, 2011). "Water Quality Management in the Context of Basin Management: Water Quality, River Basin Management and Governance Dynamics in the Philippines" (PDF). www.wepa-db.net. Department of Environment and Natural Resources. Retrieved 10 April 2017.
- DAMS IN THE CORDILLERA. internationalrivers.org
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