Western Brazil is significantly higher in elevation than the east.
This vast region of plateaus and mountains, formed from ancient crystalline rocks, averages 300–900 meters (984–2,953 ft). The country's highest point, Pico da Neblina (2,994 m / 9,822 ft), lies in the Serra do Imeri mountains within these highlands.
A low-lying sedimentary region averaging under 200 meters (656 ft), home to major cities like Rio de Janeiro and São Paulo.