Sibalom River

The Sibalom River is the longest river in the province of Antique in Panay island Philippines. With a total length of 73 km and a drainage basin covering 682 km2, it is the largest river system in Antique and fourth longest in Panay after the Panay River, Jalaur River, and Aklan River. It is located in Sibalom and San Remigio. Along with its main tributaries the Mao-it River and Tipulu-an River, it forms the 5511.47 ha Tipulu-an and Mao-it River Watershed Forest Reserve (now known as Sibalom Natural Park) which was proclaimed a natural park on 23 April 2000.

The Sibalom River has four main tributaries by length: the Tipulu-an River 33 km, Maninila River 31 km, Mao-it River 15.8 km and Cansilayan River 12.5 km. The river's watershed is considered one of the last remaining lowland rainforests on Panay.

Tributaries
The tributaries of the Sibalom River by length are as follows:


 * Tipulu-an River – 33 km (20.5 miles)
 * Maninila River – 31 km (19.2 miles)
 * Mao-it River – 15.8 km (9.8 miles)
 * Cansilayan River – 12.5 km (7.7 miles)