What are the low hills and plateaus that cover much of south eastern Brazil?

The low hills and plateaus that cover much of southeastern Brazil are part of the Brazilian Highlands, also known as the Brazilian Plateau. This region is characterized by gently rolling hills and elevated plateaus, with an average elevation of around 1,000 meters (3,300 feet) above sea level. The Brazilian Highlands are an important geographical feature of Brazil, covering a significant portion of the country's land area.