The River Sor of Mañón flows between the provinces of A Coruña and Lugo, in the autonomous community of Galicia, Spain.
The river has an impressive waterfall called Augas Caídas in Mañon parish.
The river Sor is nowadays the only river with salmon in Galicia, since unlike others it has not yet been dammed to form a reservoir for hydroelectric generation.
The estuary of the River Sor is the splendid Ria de O Barqueiro, 5 kilometers in length and one excellent landscaping quality through its 49 kilometers, a territory of enormous geomorphologic and environmental interest.