Laguna de los Aparejos is a high-altitude Andean lake situated in the Puna ecoregion of Catamarca, Argentina, at an elevation of approximately 4,240 meters above sea level. Part of the Sistema de Lagunas Los Aparejos, Azul y Negra — a complex covering roughly 139 hectares — this shallow, meso-saline lake sits at coordinates approximately 27.73°S, 68.39°W. The lake is characterized by its shallow depth, absence of aquatic macrophytes or emergent vegetation, and its stark, high-altitude Puna landscape. The property is privately owned and currently carries no formal protected area designation, though it holds significant ecological importance as a Key Biodiversity Area (KBA) recognized under criteria A1 and A4i, particularly as a major summer concentration site for the Andean flamingo (Phoenicopterus andinus) and a probable nesting location for this species.