Río Blanco (Río de los Patos)

The Río Blanco (Spanish for "white river") is a river of Argentina near Calingasta in the southwestern part of the province of San Juan. It is a tributary of the Río de los Patos which is one of the three sources of the San Juan River which empties into the Desaguadero River basin.

Map of R%C3%ADo Blanco, Los Andes, Valpara%C3%ADso, Chile