Location: Eastern South America, bordering the Atlantic Ocean
note: includes Arquipelago de Fernando de Noronha, Atol das Rocas, Ilha da Trindade, Ilhas Martin Vaz, and Penedos de Sao Pedro e Sao Paulo
Land boundaries: total 14,691 km, Argentina 1,224 km, Bolivia 3,400 km, Colombia 1,643 km, French Guiana 673 km, Guyana 1,119 km, Paraguay 1,290 km, Peru 1,560 km, Suriname 597 km, Uruguay 985 km, Venezuela 2,200 km
Coastline: 7,491 km
International disputes: short section of the boundary with Paraguay (just west of Guaira Falls on the Rio Parana) is in dispute; two short sections of boundary with Uruguay are in dispute - Arrio Invernada (Arroyo de la Invernada) area of the Rio Quarai (Rio Cuareim) and the islands at the confluence of the Rio Quarai (Rio Cuareim) and the Uruguay
Climate: mostly tropical, but temperate in south
Terrain: mostly flat to rolling lowlands in north; some plains, hills, mountains, and narrow coastal belt
Natural resources: iron ore, manganese, bauxite, nickel, uranium, phosphates, tin, hydropower, gold, platinum, petroleum, timber
Irrigated land: 27,000 km2 (1989 est.)
Environment: recurrent droughts in northeast; floods and frost in south; deforestation in Amazon basin; air and water pollution in Rio de Janeiro, Sao Paulo, and several other large cities
Note: largest country in South America; shares common boundaries with every South American country except Chile and Ecuador