Location: Lago Buenos Aires Department, Santa Cruz Province, Argentina / General Carrera Province, Aysén del General Carlos Ibáñez del Campo Region, Chile, in Patagonia
Primary inflows: Soler, Los Antiguos, Jeinemeni, Ibáñez, San Martín, Delta
Primary outflows: Bertrand Lake and then Baker River (Pacific Ocean) Deseado River (Atlantic Ocean)
Catchment area: 14,861 km² (5,738 sq mi)
Basin countries: Argentina, Chile
Surface area: 1,850 km² (710 sq mi)
Average depth: 400 m (1,300 ft)