Agno River

The Agno River, also known as the Pangasinan River, is a river on the island of Luzon in the Philippines. Traversing the provinces of Benguet, Pangasinan, and Tarlac, it is one of the largest river systems in the country, with a drainage area of 5,952 square kilometres (2,298 sq mi).

The river originates in the Cordillera Mountains and empties into the South China Sea via Lingayen Gulf. The river is 248 kilometres (154 mi) long, making it the sixth longest river in the country. Roughly two million people live in the , making it one of Philippines' larger population clusters.

The river is dammed by three hydroelectric power plants: the Ambuklao Dam in Bokod, the Binga Dam in Itogon, and the San Roque Dam in San Manuel.