The eastern part of the country, between the Paraguay and Paraná rivers, where most of the population lives, is a lowland, rising in the east and north to a plateau region. The region was once heavily forested, but forest land has been steadily depleted. The Paraná, south of the Iguaçu River (with its magnificent falls), separates Paraguay from Argentina. The Paraguay River also forms part of the border with Argentina, from its confluence with the Paraná north to the Pilcomayo River. The section west of the Paraguay River is a dry plain, part of the Chaco (see Gran Chaco). Cattle are raised and quebracho is found in the woodlands of the Chaco Boreal. All the important cities are in the east. Besides Asunción, they are Villarrica, Concepción, and Encarnación.
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