South America the Darién watershed along the Colombia–Panama border, although some may consider the border instead to be the Panama Canal. Geopolitically and geographically all of Panama – including the segment east of the Panama Canal in the isthmus – is typically included in North America alone and among the countries of Central America. Almost all of mainland South America sits on the South American Plate. South America is home to the world's highest uninterrupted waterfall, Angel Falls in Venezuela; the highest single drop waterfall Kaieteur Falls in Guyana; the largest river (by volume), the Amazon River; the longest mountain range, the
Plantations in the American South Plantations in the American South Plantations are an important aspect of the history of the American South, particularly the antebellum (pre-American Civil War) era. The mild subtropical climate, plentiful rainfall, and fertile soils of the southeastern United States allowed the flourishing of large plantations, where large numbers of workers, usually Africans held captive for slave labor, were required for agricultural production. An individual who owned a plantation was known as a planter. Historians of the antebellum South have generally defined "planter" most precisely as a person owning property (real estate) and 20 or more slaves. The wealthiest planters, such as