Sabana Iglesia is a town and municipality in the Santiago province of the Dominican Republic. Santiago is part of the northern valley of the cou…Sabana Iglesia is a town and municipality in the Santiago province of the Dominican Republic. Santiago is part of the northern valley of the country, otherwise known as the Cibao. Sabana Iglesia is located south of Santiago de los Caballeros, the second-largest city in the Dominican Republic, and sits just north of the country's second-tallest dam, the Bao Dam, surrounded by the mountains of the Cordillera Central.