where is cauayan city located
History of Cauayan City, Isabela, Philippines. 1  Cauyan wan originally a town in the province of Cagayan. 2  Then Cauayan was transferred to Nueva Vizcaya in 1839. 3  Finally when the province of Isabela was created by a Royal Decree issued on May 1, 1856, it became a town of the province of Isabela.