Poopó (pōˌōpōˈ) [key], salt lake, 965 sq mi (2,499 sq km), on the high plateau of W Bolivia. It is more than 11,000 ft (3,353 m) above sea level and averages only 10 ft (3 m) in depth; it is Bolivia's second largest lake. Fed by the Desaguadero River, it has no outlet except in time of flood, when it drains W to the Salar de Coipasa, a salt flat.
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