Erta Ale (or Ertale or Irta’ale) is a continuously active basaltic shield volcano in the Afar Region of northeastern Ethiopia. It is situated in the Afar Depression, a badland desert area. Erta Ale is the most active volcano in Ethiopia.
Mount Roraima is the highest of the Pakaraima chain of tepui plateau in South America.
The mountain, known as one of the Seven Wonders of Dauphiné, is a relatively flat limestone mesa (a table shaped elevated area of land) surrounded by steep cliffs