Home of the Isinais, Nueva Vizcaya is located in the northcentral part of Luzon in Region 2. It is surrounded by notable mountain ranges such as the Sierra Madre on the east, Caraballo on the south, and Cordillera on the west. The province has several principal rivers: Magat, Matuno, Marang, Sta. Fe, and Sta. Cruz. All these rivers are tributaries of the Magat River which flows into the Cagayan River. The province is bounded on the north and northeast by the province of Ifugao and Isabela, on the east and southeast by Quirino and Aurora, on the south by Nueva Ecija, and on the west by Benguet and Pangasinan