The Paraná Basin (Portuguese: Bacia do Paraná, Spanish: Cuenca Paraná) is a large cratonic sedimentary basin situated in the central-eastern part of South America. About 75% of its areal distribution occurs in Brazil, from Mato Grosso to Rio Grande do Sul states. The remainder area is distributed in eastern Paraguay, northeastern Argentina and northern Uruguay. The shape of the depression is roughly elliptical and covers an area of about 1,500,000 km2 (580,000 sq mi). The Paraná River, from which the Paraná Basin derived its name, flows along the central axis of the Paraná Basin and drains it.