Major Landforms of South America


Amazon basin
The Amazon Basin (Amazonia) is covered by the largest tropical rain forest in the world, and running through its heart is the Amazon River and its more than 1,000 tributaries, seven of them more than 1,000 miles in length. Measurable rain falls on an average of 200 days a year here, and total rainfall often approaches 100 inches per year.

The basin drains over 2,700,000 sq. miles, and covers about one-third of South America. Rising high in the Andes, the river's network irrigates almost half of the continent, and in terms of volume of water discharged into an ocean... it's the largest in the world.


Andes
This toothy-edged mountain system, some 4,500 miles (7,240 km) in length, extends from the southern tip of South America all the way to Panama.

It's the source of most major rivers on the continent, and its many ranges include dozens of peaks that reach over 20,000 ft; the highest point being Aconcagua in Argentina, at 22,384 ft. (6,960m). It's also home to some of the planet's largest volcanoes, and in the far south along the coast of Chile, large glaciers and ice sheets are commonplace.


Atacama Desert
Sparsely populated and positioned high into the Andes of Chile, this somewhat small desert (or plateau) is a cold place, and one of the few deserts on Earth that doesn't receive any rain. It's approximately 100 miles wide and 625 miles long. The landscape is totally barren and covered with small borax lakes, lava flow remnants and saline deposits.


Brazilian highlands
This magnificent landscape of southeastern Brazil is 800 miles in length and contains varied mountain ranges, namely the Serra de Mantiquiera, Serra do Paranapiataba, Serra Geral, and Serra do Mar. The estimated highest point is 7,368 ft (2,245m).
Guiana Highlands
Over 1,000 miles in length, the Highlands stretch from southern Venezuela to the northern border of Brazil. It's a vast plateau, one marked by deep gorges, tropical rain forests, numerous rivers and waterfalls. It's famed for the highest waterfall in the world (Angel Falls) at 3,212 ft (979m) high. The highest point is Mt. Roraima on the borders of Brazil, Guyana and Venezuela at 9,219 ft (2,810m).


Llanos
This large and very fertile plain, located in eastern and central Colombia, and central and southern Venezuela, is drained by the Orinoco River and its many tributaries. It's approximately 225,000 sq. miles (582,000 sq. km) in size.


Pampas
Famed for its many cattle ranches, this large plain in the southern part of the continent extends for almost 1,000 miles (1,600 km), and covers 294,000 sq. miles (761,460 sq km).


Patagonia
Located between the Andes and the Atlantic Ocean, and about 1,000 miles in length, Patagonia stretches south from the Rio Negro River to Tierra del Fuego and the Strait of Magellan. It's mostly rugged, barren land, famed for its beauty and striking mountain scenery.

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