Arroyo La Choza is a pampean plain stream located in the Buenos Aires province of Argentina, flowing within the cuenca (watershed) of the Río de la Reconquista. Like many streams of the Pampas region, it winds through the flat, open grassland landscape characteristic of this part of Argentina, offering a quiet and accessible freshwater fishing experience well off the beaten path. The stream supports a diverse fish community representative of the broader pampean stream ecosystem, with a mix of permanent resident species and semi-permanent visitors that shift with seasonal conditions.