The Los Leones Dam is a tailings dam on Los Leones River, a tributary of Blanco River, about northeast of Santiago, in Los Andes Province, Chile. The dam was constructed in segments between 1980 and 1999 and is now used only for emergencies. The dam is tall on its upstream face and tall on its downstream face; the height at its axis is . It is one of the tallest tailings dams in the world.

References

{{reflist Dams in Chile Mining in Chile Buildings and structures in Valparaíso Region Tailings dams Dams completed in 1999 1999 establishments in Chile