User:Howard the Duck/sandbox6

The Central Plain of Luzon is the largest plain in the island of Luzon, Philippines. It is bounded by the Lingayen Gulf on the north, the Sierra Madre in the east, Manila Bay on the south, and by the Zambales Mountains on the west. Much of the modern-day Central Luzon region and the province of Pangasinan are located in the Central Plains.

Geography
The plain is 120 miles long and 70 miles wide. The northern and western sections of the plain are composed of alluvial material, while the southeastern part is made up of pyroclastic rock. The plain is drained by the Agno River system to the north, and by the Pampanga River system in the south.

The plain is the largest contiguous lowland plain in the country. Due to the intensive agricultural cultivation on the plain, it is called as the "rice granary of the Philippines".