Riacho Correntoso is a stream located in the Santa Fe province of Argentina, flowing through the rich wetland and floodplain system characteristic of the greater Paraná River basin. This waterway sits within one of South America's most productive freshwater fishing regions, where a complex network of channels, backwaters, and lagoons supports an exceptional diversity of tropical and subtropical fish species. The surrounding riparian environment is typical of the Paraná lowlands — dense riverside vegetation, slow to moderately flowing water, and a mosaic of connected water bodies that shift with seasonal flood pulses. Anglers drawn to this part of Santa Fe will find Riacho Correntoso embedded within a broader landscape that includes nearby waters such as Río San Javier, Laguna Setúbal, and Laguna La Cuarentena, all of which share similar ecological characteristics and species assemblages.