The Río Salado, also known as the Chadileuvú, is one of the most historically significant river systems in Argentina's La Pampa province, forming part of the vast Desaguadero-Salado-Chadileuvú-Curacó drainage basin — the most extensive river basin within Argentina, spanning roughly 300,000 square kilometers across the provinces of Catamarca, La Rioja, San Juan, Mendoza, San Luis, and La Pampa. The river originates from snowmelt-fed (nival regime) sources in the Andean highlands, flowing southward and collecting the waters of the Río Jáchal and Río San Juan before passing through the Lagunas de Guanacache system and forming the provincial boundary between Mendoza and San Luis. Upon entering La Pampa at approximately 36° south latitude, it receives the contributions of the Río Atuel from the west and takes on the name Chadileuvú — a name of Mapuche origin — continuing southward toward the lagunas Urre Lauquen and La Amarga. This is a river shaped by the semi-arid landscape of western La Pampa, flowing through a region of vast open plains and scrubland, making it a remote and distinctive destination for anglers willing to explore one of Argentina's lesser-traveled waterways.