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
Saint Lawrence Lowlands the St. Lawrence Lowlands is the smallest landform region in Canada, it has a dense population and contains most of the population of Quebec. The Lowlands are abundant with agriculture, commerce, recreation locations, and transportation hubs. The St. Lawrence Lowlands is the most heavily industrialized landform in Canada, containing most of the country's manufacturing industries. It contains 70% of Canada's manufacturing systems and 70% of its farmland. The soil is very good for agricultural uses. It has the most fertile topsoil in Canada. There are many great farming places. Saint Lawrence Lowlands The Great Lakes-St. Lawrence Lowlands is a bowl-shaped