Cagayan River
| Cagayan River Río Grande de Cagayán | |
|---|---|
Cagayan River mouth | |
| Native name | Bannag (Ibanag) |
| Location | |
| Country | Philippines |
| Region | Cagayan Valley, Central Luzon |
| Province | |
| Physical characteristics | |
| Source | Caraballo Mountains |
| • location | Dupax del Sur, Nueva Vizcaya |
| • coordinates | 16°11′08″N 121°08′39″E / 16.18556°N 121.14417°E |
| • elevation | 1,524 m (5,000 ft) |
| Mouth | Babuyan Channel |
• location | Aparri, Cagayan |
• coordinates | 18°22′N 121°37′E / 18.367°N 121.617°E |
• elevation | 0 m (0 ft) |
| Length | 505 km (314 mi) |
| Basin size | 27,753 km2 (10,715 sq mi) |
| Basin features | |
| Tributaries | |
| • left | |
| • right | |
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The Cagayan River, also known as the Río Grande de Cagayán, is the longest river and the largest river by discharge volume of water in the Philippines. It has a total length of approximately 505 kilometres (314 mi) and a drainage basin covering 27,753 square kilometres (10,715 sq mi). It is located in the Cagayan Valley region in northeastern part of Luzon Island and traverses the provinces of Nueva Vizcaya, Quirino, Isabela and Cagayan; it also flows through the only Central Luzon province of Aurora.