Mount Roraima is a flat-topped formation with crystal-clear pools, waterfalls and a unique ecosystem that has been isolated from the surrounding savanna for millions of years.

Mount Roraima is a plateau with near-vertical sides ... The scientists discovered that the frogs shared a common ancestor as ...

A montage of images of Mount Roraima capture the extraordinary mountain with its sheer sides rising above the rainforest of Guyana. Aerial views capture the magnificence of the mountain.