Arroyo del Rey is a freshwater stream located near Reconquista in the Santa Fe Province of Argentina. Situated in the northeastern region of the province, this waterway is part of the broader lowland river system characteristic of the Chaco and Pampa transitional zone that defines much of Santa Fe's landscape. The stream flows through flat, agricultural terrain typical of the region, with riparian vegetation lining its banks and providing habitat for a variety of native freshwater species. Reconquista serves as the nearest major urban center, making Arroyo del Rey accessible to local anglers and visitors alike who are drawn to the stream fishing opportunities this part of Argentina offers.