Physical map of the Province of Santiago del Estero, Argentina
Physical map of the Province of Santiago del Estero, Argentina.
The province is included, almost totally, in the Chaco plain. Most of it has a very flat relief (although pristinely upholstered by dense forest cover) with some depressed areas. Only a small part of its territory, to the south and to the west, enters within the scope of the Pampean Sierras with small hillocks such as those of the Sierras de Guasayán and Sierra de Choya (to the west) and Sierras de Ambargasta (to the southwest, shared with Córdoba), further to the southwest, on the border with Córdoba and Catamarca is a depressed endorheic basin characterized by its aridity and the existence of huge salt flats such as Salinas Grandes and Salinas de Ambargasta, while to the southeast there are more depressed areas, with wetlands that flow into the great Laguna de Mar Chiquita or Mar de Ansenuza and the lagoons associated with the meteorite craters of the Campo del Cielo, while in the northeast of the province correspond to some impenetrable areas of Chaco.