Mount Roraima is the highest of the table-top mountains (called Tepuis) of the Guiana Highlands (or Guayana Highlands). Roraima is a sandstone plateau, and marks the dividing spot of Venezuela, Guyana and Brazil. It is in the southeastern corner of Venezuela's 30,000 kmē Canaima National Park. The table mountains of the park are considered some of the oldest geological formations on Earth, dating back to the Precambrian Era, some two billion years ago.
Roraima is an imposing mountain, rising above the surrounding savannahs and forest. It is thought that the reports from early Victorian expeditions to the mountain inspired Sir Arthur Conan Doyle to write his classic adventure yarn, The Lost World, in 1912 - now made into countless films of varying quality.
External link
TheLostWorld (http://www.thelostworld.org), with more about Mount Roraima and Canaima National Park