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
Republic of Independent Guiana Republic of Independent Guiana The Republic of Independent Guiana () commonly referred to by the name of the capital Counani (rendered "Cunani" in Portuguese by the Brazilians), was a short-lived independent state in South America. "Counani" was created on 23 July 1886 in the area that was disputed by France (as part of French Guiana) and Brazil in the late nineteenth century. The state was founded by French settlers and existed from 1886 to 1891. The territory of the former state of Counani is now located in the Brazilian state of Amapá. Some years after, in 1904 a Frenchman named