Fishing near Formosa, Formosa

Formosa city sits on the western bank of the Río Paraguay in the subtropical northeast of Argentina, capital of the province of the same name. The surrounding wetlands and river systems — including the Río Paraguay itself, Laguna Oca, Riacho Formosa, Riacho Pilagá, and the distant Río Bermejo — draw sport anglers from across South America after large predatory fish. The fishery is built around catch-and-release, and the province has developed infrastructure and services specifically to support visiting anglers.