[teˈpui]), is a table-top mountain or mesa found in the Guiana Highlands of South America, especially in Venezuela and western Guyana. The word tepui means house of the gods in the native tongue of the Pemon, the indigenous people who inhabit the Gran Sabana.he precipitous mountains tower over the surrounding area by up to 1,000 meters. Tepuis range in elevation from 1,000–3,000 metres (3,300–9,800 ft). Because of their great age, some tepuis exhibit surface features and subsurface caves typical of karst topography, formed in more water-soluble rocks such as limestone.