In Chile two were created in 1786: Santiago, covering the area from Copiapó to the Maule river; and Concepción, from the Maule river to the Valdivia River.
Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River | Yangtze River | Tocantins River |
Niebla is located on the northern edge, at the mouth of the Valdivia River, across from Corral.