Ciudad Guayana (Spanish pronunciation: [sjuˈðað ɣwaˈʝana]) is a city in Bolívar State, Venezuela. It lies south of the Orinoco, where the river is joined by the Caroní River. The city, officially founded in 1961, is actually composed of the old town of San Félix at the east and the new town of Puerto Ordaz at the west, which lie on either banks of the Caroní and are connected by three bridges. The city stretches 40 kilometers along the south bank of the Orinoco. With approximately one million people, it is Venezuela's fastest-growing city due to its important iron industry.