Amazon-Orinoco-Southern Caribbean mangroves Amazon-Orinoco-Southern Caribbean mangroves The Amazon-Orinoco-Southern Caribbean mangroves (NT1401) is an ecoregion along the coasts of Colombia, Venezuela, Guyana, Suriname, French Guiana and Brazil. The Amazon-Orinoco-Southern Caribbean mangroves cover stretches of the northern, Caribbean, coasts of Colombia and Venezuela, and of the Atlantic coasts of Venezuela, Guyana, Suriname, French Guiana and northeast Brazil. It includes sections of the coasts of the Brazilian states of Amapá, Pará and Maranhão. The eastern part of the ecoregion makes up the Guianan-Amazon Mangroves global ecoregion, which in turn is made up of the Guianan mangroves, Amapá mangroves; Pará mangroves and Maranhão mangroves terrestrial ecoregions. Along
Guiana Shield Guiana Shield The Guiana Shield is one of the three cratons of the South American Plate. It is a 1.7 billion-year-old Precambrian geological formation in northeast South America that forms a portion of the northern coast. The higher elevations on the shield are called the Guiana Highlands, which is where the table-like mountains called tepuis are found. The Guiana Highlands are also the source of some of the world's most spectacular waterfalls such as Angel Falls, Kaieteur Falls and Kuquenan Falls. The Guiana Shield underlies Guyana (previously British Guiana), Suriname (previously Dutch Guiana) and French Guiana (or Guyane), most of