The Gran Chaco (Quechua chaku, "hunting land") is a sparsely populated, hot and semi-arid lowland natural region of the Río de la Plata basin, divided among eastern Bolivia, Paraguay, northern Argentina and a portion of the Brazilian states of Mato Grosso and Mato Grosso do Sul, where it is connected with the Pantanal region. This land is sometimes called the Chaco Plain.
Read more about Gran Chaco: Geography, History, Flora and Fauna, Conservation Issues, Administrative Divisions in The Gran Chaco, Indigenous Peoples of The Gran Chaco