Known as the “backbone of Luzon,” Sierra Madre traverses the provinces of Cagayan, Isabela, Nueva Ecija, Nueva Vizcaya, Quirino, Aurora, Bulacan, Rizal, Laguna, and Quezon. The 1.4 million hectares mountain ranges represent 40% of the country’s forest cover and shields Luzon from the typhoons coming from the Pacific Ocean. However, the Mother mountain that frequently continue reading : Invitation to the DAP tree planting activity
