Carrera Lake (Lake Buenos Aires) – Argentina

General Carrera Lake (Chilean side) or Lake Buenos Aires (Argentine side) is a lake located in Patagonia and shared by Argentina and Chile. Both names are internationally accepted.

The lake has a surface of 1,850 km² of which 970 km² are in the Chilean Aysén del General Carlos Ibáñez del Campo Region, and 880 km² in the Argentine Santa Cruz Province, making it the biggest lake in Chile, and the fourth largest in Argentina. In its western basin, Lake Gen. Carrera has 586 m maximum depth.

The lake is of glacial origin and is surrounded by the Andesmountain range. The lake drains to the Pacific Ocean on the west through the Baker River.