This is the biggest and highest mountain chain in the Philippines, measuring 320 km (198 miles) long north to south, and 118 km (73 miles) width east to west, and consists of three ranges. The Malayan Range is located in the northern and western portion of the Cordillera, followed by the Central Range, and then the Polis Range in the eastern portion. Mount Data contains the headwaters for Suyoc, which flows into the Abra River, the Chico flows into the Cagayan River, the Asin flows into the Magat River, and Agno River flows into the Lingayen Gulf.