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A Gaucho (Argentine cowboy) driving a carriage across the pampas. The pampas are a vast, fertile lowland plain found mostly in Argentina, but extending into Uruguay and southernmost Brazil. Vegetation is predominantly composed of grasses; trees are scattered or even absent in places. Important for cattle ranching and farming, the region contains rich topsoils that in places are up to 300 m (1,000 ft) in depth.