Mount Roraima (Monte Roraima, Tepuy Roraima, Cerro Roraima) Mount Roraima is one of the oldest geological formations on Earth, dating back around two billion years. This majestic tabletop mountain, also known as Tepui, is located at the intersection of three countries: Venezuela, Guyana, and Brazil. The majority of the mountain lies in Venezuela’s Canaima National …