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
Kaieteur Falls point, Brown did not have time to investigate Kaieteur Falls closer, so he returned one year later to make comprehensive measurements. Brown’s book "Canoe and Camp life in British Guiana" was published in 1876. Two years later, in 1878, he published "Fifteen Thousand Miles on the Amazon and its tributaries". According to a Patamona Indian legend, Kaieteur Falls was named for Kai, a chief, or Toshao who acted to save his people by paddling over the falls in an act of self-sacrifice to Makonaima, the great spirit. Another legend though was told to Brown by Amerindians in the night of