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
Joyce Country Joyce Country Joyce Country () is a cultural region in counties Galway and Mayo in Ireland. Part of the area falls within the Connacht Gaeltacht. There are about 2,000 people living in the area and about 25% of those are native Irish speakers. Joyce Country lies west of the Lough Mask area, beyond the isthmus; a hilly region in the north of County Galway, extending into the southern part of County Mayo, traversed by green valleys and lonely roads. There exists a Joyce Country Mountain and Lake District which covers the area south of Lough Mask, including the communities from