Mount Roraima is the highest of the Pakaraima chain of tepui plateaus in South America. First described to Europeans by the English explorer Sir Walter Raleigh during his 1595 expedition, its 31-square-kilometre summit area is bounded on all sides by cliffs rising 400 metres.

Mount Roraima is the highest of the Pakaraima chain of tepui plateaus in South America. First described to Europeans by the English explorer Sir Walter Raleigh during his 1595 expedition, its 31-square-kilometre summit area is bounded on all sides by cliffs rising 400 metres.