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
Lincoln High School (Sioux Falls, South Dakota) Lincoln High School (Sioux Falls, South Dakota) Lincoln High School is a high school in Sioux Falls, South Dakota. Enrollment is currently at 1,966 students. Lincoln was included in the list of the top 1200 public schools in the US by "Newsweek" in their May 8, 2006 issue, ranking at 1,027. Lincoln High Schools JrROTC program is affiliated with the United States Marine Corps and is involved in flag ceremonies for many of the Patriot's sporting events. They're also involved in the community hosting many ceremonies for the American Legion and VFW organizations in Sioux Falls. The JrROTC program also