Magat River

Nueva Vizcaya is a province of the Philippines located in Cagayan Valley region in Luzon, Its capital is Bayombong. It is bordered by Benguet to the west, Ifugao to the north, Isabela to the northeast, Quirino to the east, Aurora to the southeast, Nueva Ecija to the south, and Pangasinan .Quirino province later on broke away from the province as it was more related to Isabela province in the north.