Gran Chaco
| Gran Chaco Dry Chaco | |
|---|---|
| Landscape in the Gran Chaco, Chaco Boreal, Paraguay | |
| Ecoregion territory (in purple) | |
| Ecology | |
| Realm | Neotropical | 
| Biome | tropical and subtropical dry broadleaf forests | 
| Borders | |
| Geography | |
| Area | 786,791 km2 (303,782 sq mi) | 
| Countries | |
| Conservation | |
| Protected | 176,715 km2 (22%) | 
The Gran Chaco or simply Chaco is a sparsely populated, hot and semiarid lowland tropical dry broadleaf forest natural region of the Río de la Plata basin, divided among eastern Bolivia, western 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. The ecoregion has an estimated population of 3,985,000.