Mount Roraima is the highest of the Pakarima chain of tepus or plateaux in South America. The name of the Mountain Roraima came from the native Pemon people. 'Roroi' in the Pemon language means "blue-green", and ma means "great". Mount Roraima is famous for its table-top shape, with the flat plateau - bounded on all sides by massive cliffs rising over 400 metres (1,300 ft) - that often stays high above the fogs and clouds.

Mount Roraima also hosts a couple of waterfalls, usually referred to as Roraima Falls, which leaps off the tepui in four tiered leaps; the height of the waterfall is estimated at approximately 2,000 feet (610 m). It serves as the tripoint of Venezuela, Guyana and Brazil; 5% of the area of its mountain plateau lies in Brazil, 10% in Guyana, and the rest around 85% are located in Venezuela. The 10% area de facto located in Guyana is claimed by Venezuela.

It lies on the Guiana Shield in the southeastern corner of Venezuela's 30,000-square-kilometre (12,000-square-mile) Canaima National Park forming the highest peak of Guyana's Highland Range. Another major tepui in the national park, Kukenán-tepui, is right next to Mount Roraima. The Brazilian part of the mountain forms the Monte Roraima National Park of Brazil.

More Info: en.m.wikipedia.org