Geography of South America world by drainage area—the Amazon River and the more southerly Paraná River. The other major river of this central lowland is the Orinoco River, which has a natural channel linking it with the Amazon. Most of this central lowland is sparsely populated because the soils are heavily leached, but in the south is the very fertile pampas of Argentina—one of the world's major food-producing regions where wheat and beef cattle are pre-eminent. The natural vegetation of the northern lowlands are either savanna in the northern "llanos" and southern "campos", or tropical rainforest throughout most of the Amazon basin. Efforts to
2011 South American Rugby Championship "A" wins over Chile and Uruguay. Argentina won the competition 2011 South American Rugby Championship "A" The 2011 South American Rugby Championship "A" was the 33rd edition of the two tiered competition of the leading national rugby union teams in South America. The tournament was arranged in Argentina, in the city of Puerto Iguazú, except for a match in Posadas. Like in the previous years, four teams played to qualify to the final pool, with Argentina (host) admitted directly. The first two were qualified, keeping the results of their matches also for second round. Chile won the pool and Uruguay was